# Zero-rated app jumps to #31 on Mexico's Finance Top Grossing: the Fiados ranking is real, the business isn't · mobile app

> Source: https://stringers.io/en/apps/ios_6821359495.html (Stringers / 什么值得做, generated 2026-11-08)
> Stringers answers one question every day: what small product can one or two people build in a few months and actually make money from. Numbers come from 15 databases we collect daily, each with source and date.
> For agents: these verdicts and the underlying databases (verified revenue, App Store / Google Play charts, ad libraries, GitHub, Product Hunt…) are queryable live over MCP — tools today / hot / products / directions / direction / data. Setup: https://github.com/komako-workshop/stringers (the user logs in at stringers.io → "配置 agent" to get a personal URL). Site index: https://stringers.io/llms.txt

> It hasn't really taken off: its rating has stayed at 0 and no promotion can be found. It charted because a few dollars a day is enough to hold around #30 on Mexico's Finance Top Grossing chart. A few annual plans or one-time purchases pushed it up (inferred).

[Mobile App](https://stringers.io/en/apps/index.md) · iOS · written 11-6

F

Fiados: Libreta de Deudas · Alexy Omar Cruz Aguilera

# Zero-rated app jumps to #31 on Mexico's Finance Top Grossing: the Fiados ranking is real, the business isn't

**What it is** A phone tab book for Mexican corner stores: record who owes what and what they've paid back, send a pre-written payment reminder over WhatsApp in one tap, track 10 customers for free, with the full version at MXN $49/month, $299/year, or a $499 one-time purchase.

**Why it's charting** It isn't really taking off: the rating has stayed at 0 and there's no sign of any promotion. It charts because the bar at #30 on Mexico's Finance Top Grossing is only a few dozen dollars a day. A handful of annual subscriptions or one-time purchases is enough to push it up (inference).

**C** **How you could play it** Don't build another iOS tab book. To get into this niche, build an Android-first version that works offline, puts the paywall on customer count, and offers a one-time purchase. Go after a country that isn't saturated yet, and get customers through delivery drivers, wholesalers, and the links in reminder messages.

Grade C: the per-customer paywall, one-time purchase plus subscription, and cheap paid tests on small-country finance charts are all worth learning from. But Fiados itself hasn't broken out. The tab-book space already has big players like Treinta and Kyte and a dozen copycat small apps, so anyone following in has to compete on acquisition. Few people know about it yet

Data (updated daily) · launched 2026-10-19 · Mexico score 0 · 11-08 charted in 1 stores

iOS · best category chart rank · by store

Data 2026-11-01 → 2026-11-08 (8 days, 6 observations). Lower rank is higher; gaps mean it wasn't charted that day

iOS · Ratings count · Mexico

Data 2026-11-01 → 2026-11-08 (8 days, 6 observations). Apple doesn't publish download counts; rating growth is a proxy for downloads.

Fiados, a tab-book app built by one developer in Mexico, launched in Oct 19 and reached #31 in the Finance category on the Mexico App Store's Top Grossing chart by Nov 6, with a rating of 0. It looks like a small tool suddenly making money. A closer look says otherwise: this chart's bar is low enough that a few one-time purchases can push an app up. This piece covers what it is, how the ranking came about, how crowded this category is, and what you can take from it.

### Tuesday on tab, paid back Saturday

The corner stores of Mexico (tiendita, abarrotes) have always kept a notebook of who took "2 sodas and bread" and hasn't paid yet. In 2025 July, Cuauhtémoc Rivera, president of the small merchants' alliance ANPEC, told the press that 44.4% of their surveyed shopkeepers said more people were asking for credit: "Wages don't last to the weekend, so people buy on credit from Tuesday to Saturday and pay when the weekend money comes in."

Fiados aims to replace that notebook. The developer is Alexy Omar Cruz Aguilera, and the package prefix is com.artezia. In the same month he also shipped two other small tools: 10-12's budget app "Mi Mes en Orden" and 10-18's quote-receipt app "Folio". By 11-06 all three had only 0 ratings (per the App Store developer page).

### What it is

The store page is blunt: open a customer, tap "credit" or "payment," enter the amount, done. The home screen shows the total owed, customers are sorted by how much they owe, and under each name is how long since their last payment. Partial payments are netted automatically, and overpayments are recorded as a balance in the customer's favor.

The most locally flavored feature is called "cobra sin pena por WhatsApp" (collect without awkwardness): one tap opens WhatsApp with a polite pre-written message containing the customer's name and balance, which you review before sending. Other points: no sign-up, no ads, data stored only on the phone, and it states plainly that there is no interest and no late fees. The whole package is 0.9 MB, in Spanish and English.

The free version tracks up to 10 customers. The full version adds unlimited customers, PDF statements for customers, and monthly summaries, priced at MXN $49/month, $299/year, or a one-time $499 purchase (about $27 USD).

### Why it charted: not a breakout, just a low bar

Its path on Mexico's Finance Top Grossing went like this: 11-01 #139, 11-02 #169, 11-03 #199,11-04, then 11-05 dropped off the chart, and 11-06 suddenly returned to #31. Over those five days the rating count stayed at 0 and the version stayed at 1.0.

Ranked 11-06 places above it at #27 to #30 are Nola with just 16 ratings, Alba AI with 3 ratings, and Goodbudget with 36 ratings. It sits around #30 on the Mexico finance Top Grossing chart, and a few dozen dollars a day in in-app purchases is enough to hold that spot. Its rank drifts down, drops out for two days, then jumps back, which most likely means a handful of sporadic payments: one landed at the end of October and slid off the chart, and around 11-05 someone bought a $299 yearly plan or a $499 one-time purchase (inferred).

So the ranking shows that some people will pay $20 to $30 for a tab book. It doesn't show that the app has many users.

### Where users come from: no visible activity

- App Store search: the name and subtitle are the search terms themselves, "Fiados" and "Libreta de Deudas" (debt notebook). This is probably the only channel, but with 0 ratings you can't tell the volume.

- Searching the name on TikTok, X, and the web each returns 0 results. There's no website, and the privacy policy is a Google Doc.

- Ads: none found, but not finding them doesn't mean none were bought.

This is a product that has just been put on the shelf and hasn't started selling. One person shipping three tools in a month looks like a strategy of launching several and seeing which one gets bought.

### Who it competes with: this category is already crowded

"Latin American tab books" is anything but a niche. What's niche is Fiados itself.

| Product | Scale | How Fiados differs |
|---|---|---|
| Treinta | iOS Mexico 1,374 ratings, Colombia 2,976; #1 in category Top Grossing across both countries; Google Play 12M installs | A funded full-stack store tool covering bookkeeping, inventory, and checkout, with credit as just one feature |
| Kyte | iOS Mexico 1,110 ratings, #12 in category Top Grossing; Play 3.47M installs | Checkout plus inventory |
| Khatabook | Play 100M installs | India's tab book. Fiados is essentially a minimal iOS version of it for Mexico |
| CobrApp | iOS Colombia 195 ratings, #14 in Mexico's category Top Grossing; Play 360k installs | Leans toward lending and collections. Fiados explicitly says it charges no interest |
| Quién me debe | iOS Mexico 319 ratings, ranked 11-01 to 11-06 on Mexico's Finance Top Grossing 26–86 | An 2017-year-old veteran app focused on personal loans, the most direct match to it on the charts |
| Fiao, Penduro, Libreta de Deudas y Clientes, AbonaPro, and others | 0–2 ratings | A batch of nearly identical small iOS apps that appeared over 2026 years |
| Fiado Fácil, FiadoApp, Caderneta, and others | Brazil 18–219 ratings, ranked 22–187 on Brazil's Finance Top Grossing | Portuguese version, same use case |
| Abona.mx, Libreta Simple, Clarito, Fialo | Unknown | Web or Android credit SaaS, some starting around MXN $99/month, also offering WhatsApp reminders and SEO |

(App Store and Google Play figures are as of 11-06.)

Fiados' selling points are narrowness and lightness: no account, no ads, local storage, pre-written reminder messages, and a one-time purchase option. But WhatsApp reminders and no-account setups are already offered by Libreta Simple, Clarito, and Abona. These aren't a moat, and they aren't why it charted.

One more thing to keep in mind: Treinta has 12M installs on Play, but only a thousand or two ratings on iOS. Latin American shopkeepers mostly use Android, so an iOS-only tab book is structurally unable to reach most of them (inference).

### What you can take away

1. **On Mexico, Peru, and Chile's Finance Top Grossing charts, a few one-time purchases can put you in the top 50.** Peru's Cobranza Pro, with 0 ratings, once reached #6 in Finance. It's a cheap way to test whether people will pay, but don't mistake the ranking for scale.

2. **Put the paywall on customer count, with the limit at 10.** People who just track things for fun never hit the limit. Shopkeepers running a real business do within a week or two, and that moment is exactly when they depend on the notebook most.

3. **Offer both a one-time purchase and a subscription.** Small shopkeepers don't like subscriptions. A one-time $499 is an easier decision than $49 a month.

4. **Ship three small tools a month,** name them after store search terms, and bet on whichever one gets paid for first.

### If it were you

**Verdict** : C. There's something to learn, but building another tab book to copy Fiados isn't worth it. Fiados itself hasn't broken out. It charted because the ranking bar is low, not because demand is surging around it. And where the demand actually sits is already held by funded full-stack tools like Treinta and Kyte, plus a dozen copycat small apps.

**Who it's for** : people already building tools for Latin American small merchants who have an Android channel or offline distribution; or indie developers who want to test willingness to pay cheaply on low-bar charts and launch several small tools at once.

**Who it's not for** : people hoping to get traction by building "one more nicer-looking iOS tab-keeping app." The feature takes a week to build, and so does everyone else's. What's left to fight over is acquisition.

**How to do it** : if you really want into this niche, don't build an iOS-only single product. Make an Android-first version that works offline and can send statements over WhatsApp, with the paywall copying the per-customer limit and also offering a one-time purchase. Or switch to a country and language where the tab-keeping category isn't crowded yet, like small Central American countries, or the Philippines' sari-sari stores (they call it "utang").

**How to acquire users** : store search is just the floor. The real volume is offline and on WhatsApp. Wholesalers and beverage and snack delivery drivers visit these shops every day. Partner with them for referrals, or put a download link in every payment-reminder message so the person being chased also sees the app.

**When to move** : no rush. This niche won't disappear and there's no window closing. But if you plan to test willingness to pay by exploiting the low bar on small-country finance charts, the sooner the better. Once a few players start buying traffic, the bar goes up.

**What would show I've misread it** : if Fiados stays in the top 50 of Mexico's finance Top Grossing for the next month and its ratings climb into the dozens or hundreds, that would show a simple iOS tab-keeping app (credit only, no account, one-time purchase) can survive next to the big players. Then it's worth a second look, at least a B.

[iOS store page ↗](https://apps.apple.com/app/id6821359495)

**Research notes: competitor table, acquisition evidence, full research report**

Competitors

| Name | Where | Launched | Scale | How it differs from this one |
|---|---|---|---|---|
| Treinta | iOS | 2022 | iOS mx 1,374 ratings, co 2,976; charted #1 in the mx and co finance Top Grossing; Play 12M installs | A full suite for small shops (bookkeeping, inventory, checkout) with funding; tab-keeping is only one feature. Fiados does only tabs, no account, data stays on the phone. |
| Kyte | iOS | 2018 | iOS mx 1,110 ratings; Play 3.47M installs | A SaaS for checkout plus inventory. Fiados is narrower and lighter. |
| Khatabook | Android | About 2016 | Play 100M installs | India's tab-keeping app. Fiados is essentially a minimal iOS clone of it for Mexico. |
| CobrApp | iOS | 2022 | iOS co 195 ratings; charted #14 in mx finance Top Grossing; Play 360k installs | Focused on lending and collections management. Fiados states it doesn't charge interest. |
| Quién me debe | iOS | 2017 | iOS mx 319 ratings; mx finance Top Grossing rank 26–86 | Aimed at personal loans; an older app. Fiados targets corner shops. |
| Cobranza Pro | iOS | 2026-07 | 0 ratings, once hit #6 in pe finance Top Grossing | A similar new app, also charting on 0 ratings thanks to a low bar |
| Fiado Fácil, FiadoApp, Caderneta, and others | iOS | 2024–2026 | Brazil: 18–219 ratings, finance Top Grossing #22–187 | Portuguese-language Brazilian version, same niche |
| Abona.mx / Libreta Simple / Clarito / Fialo / FIAO | Web | 2025–2026 | Unknown | Tab-keeping SaaS on web or Android, also with WhatsApp reminders, some starting at MXN $99/mo and doing SEO. Fiados is a native iOS app that can be bought outright. |

Where users come from

- Inferred **App Store search** : the name matches the search terms "Fiados" and "Libreta de Deudas" directly; with 0 ratings, volume can't be judged

- Inferred **Paid ads or social** : nothing found on TikTok, X, or the web; not covered by the Meta ad library

## Fiados: Libreta de Deudas (iOS id6821359495) research report

Regions checked: the appstore database was scanned across all storefronts. This app has only charted in Mexico (mx); nowhere else. Comparable products were checked in mx, co, pe, br, us, cl, ar, and es.

### One line

Developer Alexy Omar Cruz Aguilera from Mexico (bundle prefix `com.artezia.*`, likely tied to the Mexico City software company ARTEZIA INNOVACION TECNOLOGICA SA DE CV, unverified) 2026-10-19, a "tab book" for small shops (tienditas / abarrotes), catalog sellers, and street vendors to track who owes what and who has paid, with one-tap WhatsApp reminders. The free version tracks up to 10 customers; the full version is MXN $49/mo, $299/yr, or $499 one-time.

### Verdict: it didn't really "break out"

- **畅销榜名次是阈值太低造成的假象。** 它在墨西哥「财务」类畅销榜的名次:11-01 第 139、11-02 第 169、11-03 第 199、11-04 和 11-05 不在榜、11-06 第 31(appstore 库 chart_rank)。11-06 排在它前后的第 27–30 名,有 Nola(16 个评分)、Alba AI(3 个)、Goodbudget(36 个),说明墨西哥财务畅销榜第 30 名上下只要每天几十美元就能上。名次一路往下掉、断两天、又突然回到 31,最像的解释是零星几笔内购:先是 10 月底一笔,慢慢掉出榜,11-05 前后又来一笔 $299 或 $499(约 16–27 美元)。这是推断。

- **No sign of a user base.** The rating count stayed at 11-01 to 11-06 the whole time at 0, the version stayed at 1.0 (released 10-19), and the package is only 0.9 MB (appstore database app_snapshot).

- **No acquisition activity found.** TikTok (TikHub search for "Fiados libreta de deudas" and "app para fiados") and X (x-radar, "Fiados app" and "libreta de fiados" over the last 30 days) each returned 0 results; the only thing findable online is its own App Store page. No website, and the privacy policy sits in a Google Doc.

- **The same developer published three apps in October:** Mi Mes en Orden (budgeting, 10-12), Folio (quotes and receipts, 10-18), and Fiados (10-19). They're all small utilities, and the pattern looks like launching several at once to see which one sells (appstore database app table, developer_id=1798840240; App Store developer page). The other two never charted.

### Competitors (the category is already crowded)

| Product | Where | Launched | Scale | How Fiados differs |
|---|---|---|---|---|
| Treinta | iOS / Android | 2022(iOS) | iOS mx 1,374 ratings, co 2,976; charted #1 in co and mx finance Top Grossing; Play 12M installs (appstore / googleplay database 11-06) | A funded Colombian company with a full suite (bookkeeping, inventory, checkout); tabs are only one piece. Fiados does only tabs, no account, data stays on the phone. |
| Kyte | iOS / Android | 2018 | iOS mx 1,110 ratings, mx finance Top Grossing #12; Play 3.47M installs | Checkout plus inventory. Fiados is narrower and lighter. |
| Khatabook | Android | About 2016 | Play 100M installs | India's tab-keeping app. Fiados is essentially its minimal iOS version for Mexico. |
| CobrApp | iOS / Android | 2022 | iOS co 195 ratings, co finance Top Grossing #7, mx #14; Play 360k installs | Lending and collections focus. Fiados states it "doesn't count interest." |
| Quién me debe | iOS | 2017 | iOS mx 319 ratings; mx finance Top Grossing between ranks 26–86 from 11-01 to 11-06 | Personal lending; an older app that's the most direct match to it on the mx chart |
| Cobranza Pro | iOS | 2026-07 | 0 ratings, yet once hit pe finance Top Grossing #6 | The same pattern: 0 ratings can still chart in small-country Top Grossing |
| Fiado Fácil, FiadoApp, Caderneta, Quem Deve, and others | iOS (Brazil) | 2024–2026 | 18–219 ratings, Brazil finance Top Grossing #22–187 | Portuguese version, same use case |
| Fiao, Penduro, Libreta de Deudas y Clientes, Notas de Venta, AbonaPro | iOS | 2026-01 to 2026-10 | 0–2 ratings | A batch of nearly identical small apps over 2026 years |
| Abona.mx, Libreta Simple, Clarito, Fialo, MisFiados, Notas de Venta, FIAO | Web / Android | 2025–2026 | Unknown | Tab-keeping SaaS on web and Android, some starting at MXN $99/mo, some with dedicated SEO pages |

### How it found users

- App Store search (unconfirmed): the name and subtitle directly contain "Fiados" and "Libreta de Deudas," which match search terms; with 0 ratings, volume can't be judged.

- Paid ads (none found): nothing on TikTok, X, or the web; the Meta ad library only tracks a list of products, so it wasn't checked.

- Content, creators, press: none.

### Who knows about it

Almost nobody. No press coverage, no X posts, no TikTok videos, and no public revenue. Still, the "Latin American tab-keeping app" category is far from obscure: established players like Treinta and Kyte have grown big, and over the past 2026 years a dozen-plus similar small apps have appeared on iOS, web, and Android.

### Has anyone copied it

No one specifically copying it has been spotted, and it's a late entrant itself. After 10-15 came Fiao (10-31) and Penduro (10-15), all the same thing.

### Differentiation

Where it differs is in being extremely narrow and light: no account, no ads, data stays on the phone, a transaction takes two taps, WhatsApp reminder wording is pre-written ("cobra sin pena," collect without awkwardness), it explicitly doesn't charge interest, and the one-time price is MXN $499. But WhatsApp reminders and no-account sign-up exist elsewhere too (Libreta Simple, Clarito, and Abona all have them), so this isn't a moat, and it isn't why it charted. It charted because Mexico's finance Top Grossing has a very low bar.

### What others can borrow

1. Mexico, Peru, and Chile's finance Top Grossing charts only need a few one-time or annual purchases to reach the top 50. That makes them a cheap way to test willingness to pay, but don't mistake rank for scale.

2. The paywall hinges on "10 customers": shop owners who really run a business will pass 10 customers quickly, and that's when they'll pay, so the limit is set at a natural point.

3. Sold both one-time purchase and subscription: LatAm shop owners don't really take to subscriptions, and a one-time purchase makes them pay more easily.

4. One developer, one month, three small tools shipped at once: the spray-everything approach.

### Still unclear

- Actual sales: inferred from ranks, only a trickle of sales, not verified.

- The developer's relationship to Artezia the company: the only clue is the bundle prefix.

- Whether they ran Meta ads: nothing found, but not finding it doesn't mean they didn't.

- Whether their rankings will come back in the days ahead.

### Sources

- appstore database (agent-im server, query date 2026-11-06): chart_rank, app_profile, app_snapshot, app tables

- googleplay library app_profile (2026-11-06)

- App Store page [apps.apple.com/mx/app/id6821359495](https://apps.apple.com/mx/app/id6821359495) (in-app purchase prices, privacy policy), developer page [apps.apple.com/us/developer/alexy-omar-cruz-aguilera/id17988…](https://apps.apple.com/us/developer/alexy-omar-cruz-aguilera/id1798840240)

- Jina / Exa search: abona.mx, libretasimple.com, clarito.pe, fialo.app, miemprendedigital.com, artezia.technology

- TikHub TikTok search, x-radar search (0 results each)

This article was written by AI from public data and the data we collect daily. Numbers are sourced, and inferences are labeled.