# DD vs GainBook

The clearest difference is in-app purchases: GainBook at none against DD's 3. DD's advantage is update cadence (every 3 days vs every 5 weeks) and ratings volume (14 vs 1). On price, rating, review sentiment and ads there is nothing between them.

Both are free to download. DD sells 3 one-off in-app purchases. GainBook asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for DD against 5.0 for GainBook. That said, the two scores are not equally well evidenced: DD has 14 ratings behind it against 1, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

DD ships an update every 3 days, GainBook every 5 weeks. The most recent releases landed on October 22, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | DD | GainBook |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (14 ratings)](https://appshunter.io/ios/app/dd-420/id6774722277/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/gainbook/id6794535251/reviews) |
| Number of ratings | **14** | 1 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 5 weeks |
| Monetization | Free | Free |
| Size | 20 MB | 59 MB |
| Requires iOS | 17.6 | **16.4** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 17+ | 4+ |
| Developer | [Shawn Wright](https://appshunter.io/developer/6774722279) | [Anatolii Vedmid](https://appshunter.io/developer/6794535253) |

## What reviewers say

### DD

[App page](https://appshunter.io/ios/app/dd-420/id6774722277)

A private wellness companion for veterans managing PTSD and using cannabis. It offers daily symptom tracking, cannabis session logging, and evidence-based coping tools. All data stays on your device, with no accounts or ads.

**Highlights:** Daily PTSD symptom check-ins, Cannabis session logging, Personalized insights and charts, Evidence-based coping tools, Tolerance break tracker, Direct access to Veterans Crisis Line

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Coffee Tip | $2.99 | one-time |
| Lunch Tip | $4.99 | one-time |
| Hero Tip | $9.99 | one-time |


### GainBook

[App page](https://appshunter.io/ios/app/gainbook/id6794535251)

This workout tracker allows you to plan, log, and review your strength training progress. It offers detailed exercise tracking, customizable workout plans, and an extensive exercise library. All your data is stored locally, ensuring privacy and offline access.

**Highlights:** Workout planning and templating, Detailed set logging with rest timers, Extensive exercise library with custom options, Progress review with volume heatmaps, Local data storage and iCloud backups, Offline functionality

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

**In-app purchases:** none


## Frequently asked questions

### Is DD free?

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

### Is GainBook free?

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

### Which has better reviews, DD or GainBook?

DD and GainBook are both rated 5.0 out of 5 on the App Store, from 14 and 1 ratings respectively.

### Do DD or GainBook have ads?

Neither DD nor GainBook shows ads.

### Which is updated more often, DD or GainBook?

DD ships an update every 3 days, and GainBook every 5 weeks. Most recently, DD was updated on October 22, 2026 and GainBook on October 24, 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.*