# Blood Type Calculator vs ToneTime

The clearest difference is iOS requirement: Blood Type Calculator at 12.1 against ToneTime's 16.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Blood Type Calculator ships an update every 6 days, ToneTime every 4 days. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Blood Type Calculator | ToneTime |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 days | **Every 4 days** |
| Size | 14 MB | 5 MB |
| Requires iOS | **12.1** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Krzysztof Gwiazda](https://appshunter.io/developer/1546740383) | [光旭 赵](https://appshunter.io/developer/6790038311) |

## What reviewers say

### Blood Type Calculator

[App page](https://appshunter.io/ios/app/blood-type-calculator/id6469518938)

**Features:** macOS Compatibility

**In-app purchases:** none


### ToneTime

[App page](https://appshunter.io/ios/app/tonetime-eye-break-timer/id6790629628)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Blood Type Calculator free?

Blood Type Calculator is free to download, with no in-app purchases.

### Is ToneTime free?

ToneTime is free to download, with no in-app purchases.

### Do Blood Type Calculator or ToneTime have ads?

Neither Blood Type Calculator nor ToneTime shows ads.

### Which is updated more often, Blood Type Calculator or ToneTime?

Blood Type Calculator ships an update every 6 days, and ToneTime every 4 days. Most recently, Blood Type Calculator was updated on November 3, 2026 and ToneTime on October 31, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*