# D7 App vs Ironbook

The clearest difference is update cadence: Ironbook at every 5 days against D7 App's every 6 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. D7 App sells 8 in-app purchases, starting at $2.99 per month and Ironbook sells 10 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

D7 App ships an update every 6 weeks, Ironbook every 5 days. The most recent releases landed on October 8, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | D7 App | Ironbook |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 5 days** |
| Size | 57 MB | 3 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Vincent Lui](https://appshunter.io/developer/1453276396) | [Matthew Busel](https://appshunter.io/developer/6810582483) |

## What reviewers say

### D7 App

[App page](https://appshunter.io/ios/app/d7-app/id6784972379)

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| D7 BFF | $2.99 | per month |
| D7 BFF (Annual) | $24.99 | per year |
| DCoin x 5 | $0.49 | one-time |
| DCoin x 10 | $0.99 | one-time |
| DCoin x 20 | $2.99 | one-time |
| DCoin x 50 | $5.99 | one-time |
| DCoin x 100 | $12.99 | one-time |
| DCoin x 1000 | $129.99 | one-time |


### Ironbook

[App page](https://appshunter.io/ios/app/ironbook-workout-log/id6814264434)

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ironbook Plus Monthly | $2.99 | per month |
| Ironbook Plus Yearly | $14.99 | per year |
| PR Posters x3 | $0.99 | one-time |
| Cobalt Tape | $0.99 | one-time |
| Week Shield | $0.99 | one-time |
| Volt Tape | $0.99 | one-time |
| Rose Tape | $0.99 | one-time |
| Bone Tape | $0.99 | one-time |
| PR Fireworks | $0.99 | one-time |
| Shield Pack x3 | $1.99 | one-time |


## Frequently asked questions

### Is D7 App free?

D7 App is free to download, with in-app purchases available.

### Is Ironbook free?

Ironbook is free to download, with in-app purchases available.

### Do D7 App or Ironbook have ads?

Neither D7 App nor Ironbook shows ads.

### Which is updated more often, D7 App or Ironbook?

D7 App ships an update every 6 weeks, and Ironbook every 5 days. Most recently, D7 App was updated on October 8, 2026 and Ironbook on October 29, 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.*