Basic Calculator+ vs Tax Calculator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Basic Calculator+
Perform essential arithmetic operations with a straightforward calculator app. Its large buttons and clear display ensure ease of use, supporting both portrait and landscape orientations.
- Basic four functions
- Clear display
- Large buttons
- Portrait and landscape modes
- iPad compatible
Read full descriptionHide full description
This simple calculator with a clear display and large buttons makes calculations easy. Portrait and landscape modes both available on iPad. This app uses the basic functions of the calculator to make the simplest, best, free calculator in the app store.
Tax Calculator
Read full descriptionHide full description
Tax Calculator is an ordinary calculator with no ads. Tap "Tax In" or "Tax Out" to add or remove Japanese consumption tax, and the formula you typed stays on screen. NO ADS No full-screen ads, no banners, no ads with sound. The same in the free version. FAST AND STABLE Built only with Apple's standard frameworks, no ad or third-party SDKs. It opens instantly and is updated for each new iOS version. TAX IN ONE TAP - "Tax In" gives the price with tax, "Tax Out" gives the price without tax - Switch between 10% and 8% rates with one button - The tax amount is always shown ("Tax ¥100") - Add tax to a total: "500 + 500 Tax In" works - Fractions of a yen: round down, half up or round up VISIBLE FORMULA, EXACT RESULTS - The formula (1,200 + 800 × 2 =) stays at the top - 2.3 × 3 = 6.9 and 0.1 + 0.2 = 0.3, no floating-point surprises - Calculates left to right like a desk calculator by default; switch to "× ÷ first" in Settings - The % key works like a desk calculator (100 + 10% = 110, 200 × 10% = 20) - Thousands separators, a 00 key and repeat equals (5 × 3 = = gives 45) THREE LEVELS OF CLEAR Backspace deletes one character, long-press clears the current number, AC clears everything. No confirmation dialogs. HISTORY Every "=" is saved with its formula. Tap a row to reuse the result or re-edit the formula. WIDGET Home Screen and Lock Screen widgets show your last result and formula. Tap to open the app. FREE AND PRO (ONE-TIME ¥500, NO SUBSCRIPTION) Free: every calculation feature above, history of the last 20 entries Pro: unlimited history, running total bar, labels on history entries, custom tax rates Pay once. No further payments and no ads, ever. Note: this is not a scientific calculator (no square root, fractions or trigonometry). It is made for shopping, office work and estimates.
Screenshots
Verdict
The clearest difference is in-app purchases: Basic Calculator+ at none against Tax Calculator's 1. Basic Calculator+ also leads on device support (4 vs 1) and iOS requirement (15.0 vs 17.0). Tax Calculator's advantage is ads (none vs shown). On price 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. Tax Calculator sells 1 one-off in-app purchase. Basic Calculator+ asks for nothing beyond the download.
| Parameter | Basic Calculator+ | Tax Calculator |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (261K ratings) — better | — |
| Positive reviews | 87.5% of reviews | — |
| Number of ratings | 261K — better | — |
| Update frequency | Every 4 months | — |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod, Apple Watch — better | iPhone |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 50 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Best Free Apps | Rei Komatsu |
Bugs and requests
Basic Calculator+
Reported bugs
2 issues- Incorrect calculation results
- Ads covering the screen
Requested features
3 requests- Add fraction button
- Implement order of operations
- Include memory function
Tax Calculator
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Basic Calculator+
No in-app purchases
Tax Calculator
- Pro (one-time)$2.99





