# Todo vs Backlog by Time Engine

The clearest difference is update cadence: Backlog by Time Engine at every 3 weeks against Todo's every 7 months. Todo's advantage is device support (3 vs 1) and iOS requirement (10 vs 16.4). On price, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Todo ships an update every 7 months, Backlog by Time Engine every 3 weeks. The most recent releases landed on October 5, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Todo | Backlog by Time Engine |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 61 MB | 3 MB |
| Requires iOS | **10** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Someline Co., Ltd.](https://appshunter.io/developer/1290034480) | [100-8 Studio](https://appshunter.io/developer/1436780503) |

## What reviewers say

### Todo

[App page](https://appshunter.io/ios/app/todo-taskerlab/id1471875386)

This productivity app helps you manage your tasks with a simple interface and powerful time management tools. Track your progress, set priorities, and gain insights into how you spend your time to boost effectiveness.

**Highlights:** Add and edit tasks, Set urgent and complex levels, Start, stop, and complete tasks, Task progression with timer, View today's due tasks, Group tasks, Performance statistics

**Features:** macOS Compatibility

**In-app purchases:** none


### Backlog by Time Engine

[App page](https://appshunter.io/ios/app/backlog-by-time-engine/id6470202026)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Todo free?

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

### Is Backlog by Time Engine free?

Backlog by Time Engine is free to download, with no in-app purchases.

### Do Todo or Backlog by Time Engine have ads?

Neither Todo nor Backlog by Time Engine shows ads.

### Which is updated more often, Todo or Backlog by Time Engine?

Todo ships an update every 7 months, and Backlog by Time Engine every 3 weeks. Most recently, Todo was updated on October 5, 2026 and Backlog by Time Engine on October 7, 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.*