# Delta vs Power Memo

The clearest difference is ads: Power Memo at none against Delta's shown. Delta's advantage is update cadence (every 11 days vs every 6 weeks). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Delta sells 1 one-off in-app purchase and Power Memo sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

Delta ships an update every 11 days, Power Memo every 6 weeks. The most recent releases landed on November 5, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | Delta | Power Memo |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 11 days** | Every 6 weeks |
| Size | 48 MB | 100 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [B8T LABS](https://appshunter.io/developer/6778463963) | [yuji shimokase](https://appshunter.io/developer/6782811168) |

## What reviewers say

### Delta

[App page](https://appshunter.io/ios/app/delta/id6778463961)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Delta Pro (Remove Ads) | $1.99 | one-time |


### Power Memo

[App page](https://appshunter.io/ios/app/power-memo-workout-tracker/id6782811166)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Power Memo Monthly Plan | $2.99 | per month |
| Power Memo Yearly Plan | $26.99 | per year |


## Frequently asked questions

### Is Delta free?

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

### Is Power Memo free?

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

### Do Delta or Power Memo have ads?

Delta shows ads; Power Memo does not.

### Which is updated more often, Delta or Power Memo?

Delta ships an update every 11 days, and Power Memo every 6 weeks. Most recently, Delta was updated on November 5, 2026 and Power Memo on November 2, 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.*