# bit by bit calisthenics vs Do1

The clearest difference is in-app purchases: Do1 at none against bit by bit calisthenics's 2. Do1 also leads on update cadence (every 2 days vs weekly). bit by bit calisthenics's advantage is ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. bit by bit calisthenics sells 2 in-app purchases, starting at $5.99 per month. Do1 asks for nothing beyond the download.

bit by bit calisthenics ships an update weekly, Do1 every 2 days. The most recent releases landed on October 9, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | bit by bit calisthenics | Do1 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Weekly | **Every 2 days** |
| Size | 56 MB | 25 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Jack O'Hagan](https://appshunter.io/developer/1859343878) | [The Big Marck](https://appshunter.io/developer/1895849317) |

## What reviewers say

### bit by bit calisthenics

[App page](https://appshunter.io/ios/app/bit-by-bit-calisthenics/id6756225068)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $5.99 | per month |
| Yearly Subscription | $39.99 | per year |


### Do1

[App page](https://appshunter.io/ios/app/do1/id6764611021)

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

**In-app purchases:** none


## Frequently asked questions

### Is bit by bit calisthenics free?

bit by bit calisthenics is free to download, with in-app purchases available.

### Is Do1 free?

Do1 is free to download, with no in-app purchases.

### Do bit by bit calisthenics or Do1 have ads?

Do1 shows ads; bit by bit calisthenics does not.

### Which is updated more often, bit by bit calisthenics or Do1?

bit by bit calisthenics ships an update weekly, and Do1 every 2 days. Most recently, bit by bit calisthenics was updated on October 9, 2026 and Do1 on October 5, 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.*