One receipt, ¥5: a Korean cashback app turned Japan's points bloggers into its sales force

A Korean receipt-cashback company took an app that worked at home, gave it a new name, and moved it to Japan and Southeast Asia. In three months it went from a few hundred installs to 39k. It didn't invent a new mechanic. It did two things right: it paid several times what Japanese competitors paid per receipt, and it made the referral code a lottery, so a large group of Japanese bloggers who live off referral codes wrote about it on their own. Below: how it got started, where the money comes from, and whether you can take the same path.

A blog post at 7 a.m.

On Oct 5 2026 at 7:13 a.m., a Japanese ポイ活 (earn-points-with-apps) blogger, poichan26, published a post on hatenablog titled 「【レシートが熱い】Mani は 1 枚最大 5 円!」: receipts are hot, Mani pays up to ¥5 per receipt. The opening line:

"I tried receipt points, but 1 receipts for 1 yen isn't worth it…" — I tried collecting points from receipts, but 1 yen per receipt isn't enough to keep going.

Next came a table: enter a referral code to open a "lucky chest" that pays randomly between 300 and 50,000 points; the first receipt upload pays 20 points, and uploading 3 receipts within 5 days pays 200 more. Her six-character referral code appears at the top and bottom of the table, with bold text warning: if you don't enter it within 24 hours of installing, you can never enter it.

Two weeks later, on Oct 19, another blogger on ameblo published an article with nearly the same structure, also putting the referral code at the very top. This one October wrote 3 posts.

Mani's installs on Google Play (third-party estimates): Sep 16 only 386; Oct 4 6,703, Oct 8 9,853, Oct 21 17,870, Nov 6 39,138; over the last 7 days it added 17,222 (+79%). The curve is a staircase, not a slope: jumps at 9-20–9-24, 10-04, 10-08, 10-20–10-21, and 11-03, with a 3-day jump of 9,450 at 11-03 and flat days in between. Several jumps fall very close to the dates of blog posts, but which post caused which jump can't be verified from the outside (inference).

What it is

An app that earns points by scanning receipts. Any store's receipt works: convenience stores, supermarkets, drugstores. You don't have to pick a product first. Upload a photo, AI reads it and assigns points, up to 50 points per receipt, 3 receipts a day, and watching a short video unlocks the 4nd. Small extras include walking, daily check-ins, and opening chests.

Points redeem for gift cards. The English version says 1,000 points = $1, with Amazon, Walmart, and Starbucks options. In Japan it's 10 points = ¥1, so a single receipt pays up to ¥5, with redemption starting at 1,000 points (¥100) at minimum.

Behind it is BridgeWorks in Seoul's Gangnam district. It runs an identical app in Korea called 캐시모어 (Cashmore), launched in August 2024, with 620k installs on Google Play and reaching #13 in the Korean lifestyle free chart. Korean media reported it had over 100k daily active users and began turning a profit in early 2026 (company claim, unverified), and it has raised seed and Pre-A funding. Mani is the overseas version of Cashmore: launched on Play in August 9, on iOS in August 26, with a privacy policy written under Japanese law and data hosted in Tokyo.

Why Japan

Receipt cashback has been overdone in the US. Fetch has 31M installs on Play, and Receipt Hog, CoinOut, and Receipt Pal are all in the millions. Japan isn't short of options either: レシチャレ 4.46M, ONE 1.73M, CODE 1.57M. Mani never went to the US; it has never once charted in the US lifestyle category.

It went to Japan because Japan has a ready-made distribution network: the ポイ活 circle. This circle has a large group of bloggers and YouTubers who specialize in reviewing "new points-earning apps." Every article and video carries their own referral code, and they earn a reward when someone uses it. For them, a new app is a new topic, and the bigger the reward, the more worth writing about.

Mani gave this group two things:

A number that fits in a headline. A typical Japanese receipt app pays about ¥1 per receipt; Mani pays up to ¥5. Bloggers simply write "high per-receipt pay" and "up to ¥600 a month" (4 receipts a day × ¥5 × 30 days). YouTube review titles read 「レシートポイ活界最強『mani』」 and 「月400円級!?」.

A giveaway you can put in the headline. New users enter an invite code to open a treasure box, up to 50,000 points, which is 5,000 yen. Creators will honestly add "the minimum is 300 points (30 yen), which is normal," but the title says "up to 5,000 yen." The inviter gets 500 points for each person they bring in, and there are extra rewards at 3, 5, 7, and 10 referrals. The box pays out an expected value, and users actually spend far less than the title suggests (inferred).

On Sep 5, 「ポイントゲット」, a major account in Japan's points community, posted on X: 「韓国産ポイ活アプリ『Mani』登場」 (a Korean-made points app, Mani, has arrived), with a PR label. That post was paid, or part of an affiliate deal. Over the following two weeks, installs jumped for the first time.

The clearest evidence is the App Store Japan review section (checked on Nov 6). Among the 26 most recent reviews, 13 have a six-character referral code as their title or first line:

"7Y6YYZ ↑↑↑↑↑ Enter this code and you get up to 5000 yen, so grab it!" (10-09,5 stars) "↑Use it if you like it! Found it through an influencer and installed it." (9-26,4 stars)

The second review spells out the whole chain: saw it on a blogger → installed it → posted their own code in the review section to bring in the next person. The reviews themselves became an ad slot.

Southeast Asia and English-speaking markets: easy to chart, volume uncertain

On Nov 6, Mani charted on Google Play's lifestyle free charts in several countries: #20 in Singapore, #37 in Mexico, #45 in Thailand, #56 in Malaysia, and #64 in Japan. A few days earlier it had also been ranked in Vietnam (20–34) and the UK (78–117).

These rankings look good, but they come from small-country category charts where a few thousand installs is enough to reach the top 50. It has a Facebook page, where it posted a Reel in Oct 29 captioned 「1,000P = a S$1.25 gift card」, clearly aimed at Singapore; it got 2,300 views. How much was spent is not visible. No local-language content for Mexico or Thailand was found, so whether that volume was bought, organic, or from points walls is unclear.

Scattered personal-finance bloggers in English-speaking markets promote it: an Australian blog wrote a series of posts testing cashouts of AU$1.5 and AU$7.5; Instagram users in the UK post screenshots of "£15 cashed out a month" along with referral codes. Volume is small.

So the install split by country can't be broken down. Whether Japan is the main market is inferred from content heat, and its rank on Japan's Play chart is actually the lowest of the markets listed (inference).

Where the money comes from

No revenue disclosed. Two visible sources:

Ads. The app has ads and integrates ad networks like AppLovin. The design: most of the points come from watching ads. Ticket #4 requires a video, opening a chest requires a video, and a Japan-store user complained: "Walking points only unlock if you watch an ad, annoying when you're busy." Rewarded video revenue backs up the points.

Receipt data. Korea's Cashmore has publicly described turning offline receipts into data and selling it to brands for performance marketing. Whether Mani has this revenue overseas is unknown.

Maximum per user: by a blogger's calculation, Japan can reach about ¥600 a month; in practice many receipts pay only 15–30 points, so typical users get far less. Whether ad revenue covers the points cost and how long users stay is not verifiable from outside.

What users are complaining about

322 ratings on Play, average 3.56, skewed to the extremes: 5 one-star 161, 1 five-star 71. Japan iOS: 99 ratings, 4.11 average.

Negative reviews cluster around two issues. Early on it was crashes: late September to early October, Japanese one-star reviews repeated "stuck after scanning a receipt" and "crashes after watching an ad," some said "deleted after 3 minutes," and some lost points after updates. Complaints dropped after mid-October.

现在是兑换渠道:「交换先にpaypayか現金を増やして欲しい」——想要 PayPay 或现金,有了就给 5 星;还有人想要楽天积分、WAON。11 月 5 日一条评论说,原来能换的「えらべるPay」没了,只剩 Amazon 和 Uber,「都是我不用的」。日本用户要的是能直接花的钱,礼品卡对他们不够用。

Is anyone competing?

New receipt-rewards apps keep appearing in this niche (in September, Myner on TikTok, and one called Receipts on Reddit), and the category is crowded. Nothing has been spotted copying Mani specifically.

The real competitors are the big local players in Japan, and Mani faces a problem: ¥5 per receipt is a subsidy, not a moat. Backed-by-big-company players like レシチャレ could raise payouts anytime, and Mani's pitch disappears. If Mani cuts its own payouts, bloggers stop writing about it.

If it were you

C. The playbook is worth learning, but building a receipt-rewards app from scratch isn't a good bet.

Bottom line: Mani's growth rests on two things: a product and risk controls already proven in Korea, plus money to subsidize payouts and chests. The mechanics are open to anyone. The hard part is balancing points costs against ad revenue while stopping receipt fraud. A solo indie developer rarely has either.

What you can actually take: the distribution method. Japan's points-hunting (poi-katsu) community is a ready-made performance sales network: you provide points, bloggers provide articles, videos, and comment-section buzz. If your app can naturally hand out points (walking, expense logging, quizzes, reading novels, check-ins), you can plug into this network.

Who it fits: a small team that already has a "earn points" app working in another country, with points and risk systems in place, enough budget to fund subsidies for a few months, and Japanese language skills or access to someone who knows Japan's points community.

Who it doesn't fit: anyone starting from zero on receipt recognition and rewards (the US and Japan have older players with millions to tens of millions of installs); anyone who can't fund payouts (this niche competes on payout size); anyone counting on this category to grow in the US (Mani itself hasn't gone there).

How to do it: pick a category in Japan where competitors pay little and you can pay several times more, and put a number in the title ("¥5 per receipt," "up to ¥600 a month"). Turn invite codes into lottery chests: make the top prize big and the expected value small, and require the code within 24 hours to force new users to enter it right away. Hook rewarded video up on day one, since most points should be tied to ad viewing. Keep the redemption threshold low (from ¥100) and connect the channels Japanese users actually use, like PayPay and Rakuten, from the start. Mani's recent three-star reviews in Japan are mostly about exactly this.

How to get users: before launch, contact several poi-katsu bloggers on hatena, ameblo, and YouTube, offer referral rewards, and if needed buy PR posts from one or two big accounts in the points community. Afterward, give every new user a reason to share their code, including in your own App Store reviews.

When to move: there's no rush, since the poi-katsu community is always looking for new topics. But within one category, once a second or third high-payout app has been covered, bloggers become reluctant. The earlier the better.

Signs you've read it wrong: (1) Mani cuts payouts or tightens review before the end of 2026, and the install step-ups stop, meaning subsidies can't sustain it and the approach burns more cash than expected; (2) conversely, after adding PayPay, Japan ratings climb above 4.5 and installs keep stepping up, meaning Japanese users really stay and the market is bigger than it looks, worth serious effort; (3) Japan's local レシチャレ or ONE raise receipt payouts above ¥3, erasing the high-payout selling point.