# SimpleToDo vs Authenticator

The clearest difference is rating: SimpleToDo at 5.0 against Authenticator's 4.5. SimpleToDo also leads on in-app purchases (none vs 3) and ratings volume (18 vs 2). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Authenticator sells 3 in-app purchases, starting at $5.99 per 7 days. SimpleToDo asks for nothing beyond the download.

SimpleToDo holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: SimpleToDo has 18 ratings behind it against 2, so its average is the more settled of the two.

SimpleToDo ships an update every 4 days, Authenticator weekly. The most recent releases landed on October 14, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | SimpleToDo | Authenticator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (18 ratings)](https://appshunter.io/ios/app/simpletodo-todo-and-calendar/id1294530516/reviews)** | [4.5 (2 ratings)](https://appshunter.io/ios/app/authenticator-2fa-code-and-otp/id6769224166/reviews) |
| Number of ratings | **18** | 2 |
| Positive reviews | 90.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 4 days** | Weekly |
| Monetization | **Free** | Free with in-app purchases |
| Size | 45 MB | 36 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone, iPad, Apple Watch | **iPhone, iPad, Mac, Apple Watch** |
| Age rating | 4+ | 17+ |
| Developer | [Shanghai Paitui Technology Co., Ltd.](https://appshunter.io/developer/1242689728) | [志兵 袁](https://appshunter.io/developer/6779040430) |

## What reviewers say

### SimpleToDo

[App page](https://appshunter.io/ios/app/simpletodo-todo-and-calendar/id1294530516)

Organize your tasks, schedules, and memos with this efficient to-do list and calendar app. Features include tag classification, a four-quadrant view for prioritizing, and smart widgets for home screen access. Stay on track with persistent reminders and seamless iCloud synchronization.

**Highlights:** Tag Classification for organization, Four-Quadrant View for task prioritization, Calendar View for monthly task overview, Smart Widgets for home screen management, Progress Ring for task completion tracking, Persistent Reminders for important notifications, iCloud Auto Sync across devices

**Features:** macOS Compatibility, Siri integration, Apple Watch app, Vision Pro support

**In-app purchases:** none


### Authenticator

[App page](https://appshunter.io/ios/app/authenticator-2fa-code-and-otp/id6769224166)

This app secures your online accounts with 2FA codes, a password manager, and a secure browser. It offers iCloud sync, Apple Watch support, and Face ID protection for comprehensive account security.

**Highlights:** 2FA authentication with TOTP, Password vault with local encryption, Strong password generator, Built-in secure browser, iCloud sync and cloud recovery, Apple Watch support, Face ID/password protection

**Features:** Apple Watch app, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $5.99 | per 7 days |
| Yearly | $17.99 | per year |
| Lifetime | $44.99 | one-time |


## Frequently asked questions

### Is SimpleToDo free?

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

### Is Authenticator free?

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

### Which has better reviews, SimpleToDo or Authenticator?

SimpleToDo is rated higher. SimpleToDo averages 5.0 out of 5 from 18 ratings, while Authenticator averages 4.5 from 2 ratings.

### Do SimpleToDo or Authenticator have ads?

Neither SimpleToDo nor Authenticator shows ads.

### Which is updated more often, SimpleToDo or Authenticator?

SimpleToDo ships an update every 4 days, and Authenticator weekly. Most recently, SimpleToDo was updated on October 14, 2026 and Authenticator on October 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.*