groupay vs EpubToXtc
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
groupay
Easily track and settle shared expenses for group activities like travel and events. Input who paid what, and the app calculates exactly who owes whom. Features allow for adjustments and selective cost splitting among participants.
- Split bill calculation
- Expense tracking
- Payment adjustments
- Selective cost splitting
- Group settlement
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Group + Pay = groupay! groupay is an application that makes it easy to adjust for split bill of group travel, BBQs, and other events. For example, have you ever experienced the following when traveling in a group? Mr./Ms. A: paid accommodation expenses Mr./Ms. B: paid rental car and highway expenses Mr./Ms. C: paid the entrance expenses Mr./Ms. D: paid meals expenses Mr./Ms. E: paid gasoline expenses When members are advancing various payments like this, it is difficult to calculate who should pay how much to whom when the final settlement is made... In such a case, groupay makes it easy to know "who should pay whom and how much" in the final settlement by simply inputting "who paid how much". Also, Mr./Ms. A came from far away, so I want to reduce his payment. Mr./Ms. B is a midway participant, so I want to give him a discount. A reduction function is also provided for such cases. Furthermore, you may want to split the cost of alcohol with only those who drink. In such a case, I have also included a function that allows you to select a member for each payment. Let's use groupay to free yourself from the hassle of complicated calculations when settling your account! *Depending on the amount of payment and the number of people, there may be a small error if the amount per person or the settlement amount is not exactly divisible by the amount of payment or the number of people. Please understand. URL scheme groupay://
EpubToXtc
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説明文: EpubToXtc は、お手持ちのEPUB形式の電子書籍を、Xteinkシリーズなどの電子ペーパー(E Ink)端末で読めるページ画像フォーマット(XTC / XTCH)に変換するアプリです。 ■ こんな方に ・Xteink X4 / X4 Pro / X3 などの電子ペーパー端末をお使いの方 ・お手持ちのEPUBを、日本語の縦書きレイアウトで読みたい方 ・自炊・購入済みの電子書籍を、専用端末向けに最適化して読みたい方 ■ 主な機能 ・縦書き・ルビ(ふりがな)表示に対応した本格的な組版エンジン ・端末機種ごとのプリセット(解像度)と、カスタム解像度指定 ・フォント(明朝体・ゴシック体)、文字サイズ、行間、上下左右の余白を自由に調整 ・変換前に実機の見た目そのままのプレビューを確認可能 ・白黒2階調(XTC)/4階調グレー(XTCH)の出力形式を選択可能 ■ プライバシーについて 変換処理はすべて端末内で完結します。読み込んだEPUBファイルの内容が外部のサーバーに送信されることはありません。詳しくはプライバシーポリシーをご確認ください。 ※ 本アプリは無料でご利用いただけます(広告表示あり)。 ※ 本アプリは、ご自身が正当な権利を有するEPUBファイルの変換を目的としています。
Screenshots
Verdict
The clearest difference is in-app purchases: EpubToXtc at none against groupay's 4. EpubToXtc also leads on ads (none vs shown) and update cadence (daily vs every 2 weeks). groupay's advantage is iOS requirement (17.0 vs 26.5). On price and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. groupay sells 4 one-off in-app purchases. EpubToXtc asks for nothing beyond the download.
groupay ships an update every 2 weeks, EpubToXtc daily. The most recent releases landed on October 6, 2026 and September 30, 2026 respectively.
| Parameter | groupay | EpubToXtc |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 61.3% of reviews | — |
| Update frequency | Every 2 weeks | Daily — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 17.0 — better | 26.5 |
| Further details — not scored | ||
| Size | 7 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Akihiro Usui | Tsutomu Kondo |
In-app purchases
groupay
- Hide Ads$0.49
- Snack-Sized Tip$0.49
- Coffee-Sized Tip$1.99
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- Lunch-Sized Tip$3.99
EpubToXtc
No in-app purchases








