Worthful: an Indonesian developer turned a bookkeeping app into a "wallet", and its #20 grossing chart spot doesn't actually bring in much money

Worthful, a finance app built solo by Indonesian developer Egi Fermana Putra, reached #20 on Indonesia's App Store finance Top Grossing chart in Nov 6. But it has only 16 ratings worldwide, and Indonesia's chart is so low-bar that apps with 3 or 4 ratings can also land in the top 30. It hasn't broken out yet. What's worth watching is its approach: it doesn't start with "log an expense." It starts by managing the credit cards, PayLater, and installments in your wallet, using your actual card faces. Add a developer shipping almost daily, who changed the name 6 times in 7 weeks.

"The keyboard pops up and the screen snaps back"

In Nov 2, an Indonesian user named Bapak2anak left a 5-star review, but it was about a bug: "Now I can't enter an amount or report a problem in the app. The keyboard pops up and the screen snaps back." The next day came a 4-star review: "It's pretty good already, but it crashes whenever I edit."

The developer shipped four versions in a few days (11-02 to 11-05, per the App Store version history) — 2.0, 2.1, 2.2, 2.3 — with new features like "payday month" and "record loans on the statement" mixed in, and the rest labeled "bug fixes." Less than two months after its Sep 11 launch, it's at version 2.3, and the third-party site AppInsider has logged 58 store-page changes.

That's all the user feedback visible on the App Store: 15 ratings in Indonesia averaging 4.8 stars, and 1 more across other countries (Apple lookup, 11-06). The earliest review, from Sep 14: "keep growing bro, the UI/UX is very Gen Z 🤣, hope it gets more stable with fewer bugs." The tone sounds like someone who knows the developer (inferred).

What it is

A finance app that puts cards, bills, spending, and assets together, universal for iPhone and Mac, with a web version and Android in beta. Unlike typical expense trackers, its home screen is a stack of cards: each credit card, debit card, PayLater, and personal loan gets its own card, showing remaining credit, due date, and points. The site's pitch is "your real cards, with their own card faces." Card faces are sorted by country and credit versus debit: in Oct 17 there were 505 cards from 19 countries, growing to 767 cards by 23, and the Nov 2 2.0 version added 385 cards from Canada, Colombia, and Ukraine (App Store version history). The Oct 17 version also put card faces into Premium.

Below that: a bill calendar (subscriptions, mortgages, and installments by date), budgets, receipt scanning, automatic logging from bank SMS and Apple Pay Shortcuts, automatic price feeds for stocks, crypto, gold, and funds, and a net worth number that ties it all together. 13 languages.

Pricing: the free version works fully offline on one device. Premium covers sync, sharing with a partner, bank card faces, automatic price feeds, and automatic logging. In the Indonesian store, prices are Rp 19k per month, Rp 149k per year, and Rp 299k lifetime (Indonesian App Store page), roughly 1.1, 9, and 18 USD (estimated). Web payments go through LYNK.ID, an Indonesian creator payment platform. In November the site had a note: "Web upgrades are open again, thanks for your patience."

What that #20 ranking does and doesn't tell you

Its rankings on Indonesia's finance Top Grossing chart: 10-28 #71,10-30 #118,10-31 #28,11-03 #32,11-05 #77,11-06 #20. It has also appeared on similar charts in Costa Rica, Hong Kong, Saudi Arabia, Turkey, and Malaysia, where it had only 0 to 1 ratings.

On the same day on Indonesia's finance Top Grossing chart, #19 Saldoin had only 4 ratings and #32 Bujji had only 3. On this chart, a subscription or two, or a single lifetime purchase, can move an app up in a day, and rankings bounce between #20 and #118. That pattern is what a handful of payments looks like. It shows people are willing to pay, but not scale. AppInsider estimates its worldwide installs at 500 times more than its US downloads of under 1,000 (MWM).

Where users come from

• Renaming to test search terms (confirmed): in 7 weeks it changed its name 6 times: Worthful: Cards & Points → Spending & Budget (10-01) → Budget & Wallet (10-05) → Worthful: Expense Tracker (10-17) → Expense Tracker: Worthful (10-25) → Money Manager: Worthful (11-02), with several rounds of icon and screenshot changes too. Moving from "cards and points" to "expense tracking" and "money management" is reaching for higher-volume terms. 11-04 It ranked #7 for "money manager" in Colombia (AppInsider).
• Its own Instagram and Threads (confirmed, very small): @worthful.app started posting product demo short videos around October, such as tapping the back of the phone twice to log an expense. On Threads it shows up under other finance apps' posts. No post with real traction found.
• Landing pages on the website (effectiveness not verified): worthful.app breaks out into pages for credit cards, bills, installments, and net worth, plus country-specific card-face pages, such as "34 US card faces."
• Not found: Meta ads, TikTok (0 posts under @worthful), X, Reddit, press coverage, or developers posting revenue.

Who it's competing with

In the top 100 of Indonesia's finance Top Grossing chart, a dozen-plus indie expense trackers launched after November 2025 are present. Worthful is one of this wave, not its originator. What sets it apart is its card-centric approach: Indonesian office workers often use credit cards, Shopee PayLater, Kredivo, and several installment plans at once, and none of them can be viewed in one place. Apple Wallet shows card faces, but in Indonesia it doesn't show limits or installments. The angle is real, but so far it has only earned a few payments, not growth.

If it were you

Verdict: C. What's worth learning is the playbook, not this product. Personal finance is one of the most crowded categories on the App Store, and Indonesia alone had a dozen-plus indie apps this year. Worthful's strongest differentiators (card-centric, real card faces) have only 15 ratings and a few subscriptions as evidence, which isn't enough to show the angle can scale.

Who it suits: indie developers who already want to build finance tools and live in a country where credit cards, buy-now-pay-later, and installments are common, such as the Philippines, Vietnam, Mexico, or Brazil. The needs there match Indonesia's: money is spread across several cards and PayLater accounts, and people forget due dates.

Who it doesn't suit: anyone hoping to push a generic expense tracker into the US or Europe. Those markets have established products with direct bank connections, and Worthful has only 2 ratings in the US.

How to do it: don't build the eleventh "log an expense" app. Follow its model and make the home screen a wallet: cover the main local banks and PayLater cards first, show limits, due dates, and remaining installments at a glance, and put expense logging further back. Card faces work both as a paywall and as country-by-country landing pages. Support local payment methods on the web to avoid App Store fees, and serve people who don't have a credit card linked to their Apple ID.

How to acquire users: put local-language search terms like "expense tracker," "credit card," and "PayLater" in the name and subtitle, and swap them every few weeks as it does, watching which terms drive traffic. Make short videos like "I have 5 cards and 3 PayLater accounts, and every due date is on this one screen," and post them on local TikTok and Threads.

When to move: no rush. This isn't a window-type opportunity. Indonesia's wave of developers is building in parallel, and whether you start a few months earlier or later makes little difference.

What would prove the read wrong: first, if Worthful passes 100 ratings in Indonesia within a month and stays in the top 20 of the chart. That would mean "card-centric" really does pull people away from generic expense trackers, and it'd be worth copying into other countries right away. Second, if big players like Catatku or Sepran start adding card faces and PayLater limit tracking, it would mean they've seen the same demand, and at that point their user bases would make it much harder for followers to compete.