# ThinkBack vs Totally Doable

The clearest difference is ads: ThinkBack at none against Totally Doable's shown. ThinkBack also leads on update cadence (every 3 days vs every 3 weeks). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. ThinkBack sells 2 in-app purchases, starting at $1.49 per month and Totally Doable sells 5 in-app purchases, starting at $0.49 per month. Whichever you choose, the download price is not the number that matters.

ThinkBack ships an update every 3 days, Totally Doable every 3 weeks. The most recent releases landed on September 8, 2026 and May 17, 2026 respectively.

## The numbers

| Metric | ThinkBack | Totally Doable |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/thinkback/id1541030401/reviews)** | — |
| Number of ratings | **3** | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 3 days** | Every 3 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 61 MB | 33 MB |
| Requires iOS | 13.0 | **12.2** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Sam Storino](https://appshunter.io/developer/1457262269) | [Vigour Apps](https://appshunter.io/developer/1030347244) |

## What reviewers say

### ThinkBack

[App page](https://appshunter.io/ios/app/thinkback/id1541030401)

This app helps you commit information to long-term memory through spaced repetition. It prompts you daily to review notes, organize them with hashtags, and offers private iCloud syncing. Upgrade for enhanced functionality.

**Highlights:** Spaced repetition for memory building, Daily review prompts, Note organization with hashtags, Private iCloud syncing, Search and filter notes, Mark notes as memorized

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $1.49 | per month |
| Yearly | $14.99 | per year |


### Totally Doable

[App page](https://appshunter.io/ios/app/totally-doable-tasks-and-plan/id1545129018)

**Features:** macOS Compatibility

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Backups | $0.49 | per month |
| Backups | $0.49 | per 7 days |
| Backups | $0.99 | per 7 days |
| More items | $0.99 | one-time |
| Today widget | $0.99 | one-time |


## Frequently asked questions

### Is ThinkBack free?

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

### Is Totally Doable free?

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

### Do ThinkBack or Totally Doable have ads?

Totally Doable shows ads; ThinkBack does not.

### Which is updated more often, ThinkBack or Totally Doable?

ThinkBack ships an update every 3 days, and Totally Doable every 3 weeks. Most recently, ThinkBack was updated on September 8, 2026 and Totally Doable on May 17, 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.*