TriTab Calc Flex vs 习惯成了
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
TriTab Calc Flex
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Three calculations, one clear screen. TriTab Calc Flex gives you three independent calculator tabs—A, B, and C—so you can switch between figures without losing your results or history. It is useful for comparing prices, shopping, estimates, travel, and splitting a bill. Key features - Running total shown as you type, before you press "=" - Three independent calculator tabs - Results and history retained for each tab - Copy results from history - +Tax for tax-inclusive prices - -Tax for calculating the pre-tax amount - 8%, 10%, or a custom tax rate - Square root, square, and percentage - Swipe to undo and redo - Compare the total and difference across all three tabs - Split bills with optional rounding - English, Japanese, Simplified Chinese, and Traditional Chinese Add only what you need The one-time Ad-Free & Display Pack removes the banner ad and unlocks high-contrast and dark themes plus larger text. The one-time Scientific Calculator Pack unlocks trigonometric and inverse trigonometric functions, log, ln, exponentials, square root, square, reciprocal, pi, e, DEG/RAD switching, and Night mode. There is no monthly or annual subscription. Every purchase is one time only, and purchases can be restored in this app using the same Apple ID.
习惯成了
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好习惯,好未来 隐私政策: https://legal.babyplan.xin/privacy-policy.html 用户协议 (EULA): https://legal.babyplan.xin/user-agreement.html
Screenshots
Verdict
The clearest difference is price: 习惯成了 at Free against TriTab Calc Flex's $1.99. 习惯成了 also leads on in-app purchases (none vs 2) and ads (none vs shown). On update cadence 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
习惯成了 is free to download; TriTab Calc Flex costs $1.99 up front. TriTab Calc Flex sells 2 one-off in-app purchases. 习惯成了 asks for nothing beyond the download.
TriTab Calc Flex ships an update every 6 days, 习惯成了 weekly. The most recent releases landed on October 31, 2026 and October 29, 2026 respectively.
| Parameter | TriTab Calc Flex | 习惯成了 |
|---|---|---|
| Price | $1.99 | Free — better |
| Update frequency | Every 6 days — better | Weekly |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 17.6 | 15.6 — better |
| Further details — not scored | ||
| Size | 7 MB | 44 MB |
| Age rating | 12+ | 4+ |
| Developer | HIROKI MURAI | 晓 杨 |
In-app purchases
TriTab Calc Flex
- Scientific Calculator Pack$1.99
- Display & Ad-Free Pack$2.99
习惯成了
No in-app purchases








