# Flexblocks vs Saber

The clearest difference is rating: Saber at 4.0 against Flexblocks's 1.0. Saber also leads on in-app purchases (none vs 3) and ads (none vs shown). Flexblocks's advantage is review sentiment (100% vs 76%). On price, update cadence and iOS requirement there is nothing between them.

Both are free to download. Flexblocks sells 3 in-app purchases, starting at $3.99 per month. Saber asks for nothing beyond the download.

Saber holds the better App Store score, 4.0 against 1.0. That said, the two scores are not equally well evidenced: Saber has 21 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 100% of Flexblocks's written reviews are positive against 76% of Saber's, so the app with the better star average is not the one people write more warmly about.

Flexblocks ships an update every 10 days, Saber fortnightly. The most recent releases landed on June 7, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | Flexblocks | Saber |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/flexblocks-time-blocking/id1631938060/reviews) | **[4.0 (21 ratings)](https://appshunter.io/ios/app/saber-handwritten-notes/id1671523739/reviews)** |
| Number of ratings | 1 | **21** |
| Positive reviews | **100.0% of reviews** | 76.5% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 10 days** | Fortnightly |
| Monetization | Free with in-app purchases | **Free** |
| Size | 15 MB | 49 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Andrey Bukati](https://appshunter.io/developer/657064931) | [Adil Hanney](https://appshunter.io/developer/1671523741) |

## What reviewers say

### Flexblocks

[App page](https://appshunter.io/ios/app/flexblocks-time-blocking/id1631938060)

This app optimizes your day by automatically scheduling time blocks for tasks, helping you avoid procrastination and meet deadlines. It learns your best times to create a personalized schedule.

**Highlights:** Auto-scheduling for tasks, Optimizes daily schedule, Learns user's best times, Integrates with calendar, Helps meet deadlines

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Plan | $3.99 | per month |
| Special Offer | $11.49 | per year |
| Annual Plan | $46.99 | per year |


### Saber

[App page](https://appshunter.io/ios/app/saber-handwritten-notes/id1671523739)

Capture and organize your thoughts with a digital handwriting app designed for intuitive use. Features include dark mode inversion for eye comfort, advanced highlighter capabilities, and robust folder organization. Secure your notes with a dual-password system and enjoy seamless syncing across all your devices.

**Highlights:** Intuitive handwriting interface, Dark mode inversion for eye comfort, Advanced multi-line equation highlighting, Unlimited nested folders for organization, Dual-password note protection, Seamless cross-device syncing, Open-source code for transparency

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Flexblocks free?

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

### Is Saber free?

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

### Which has better reviews, Flexblocks or Saber?

Saber is rated higher. Flexblocks averages 1.0 out of 5 from 1 ratings, while Saber averages 4.0 from 21 ratings.

### Do Flexblocks or Saber have ads?

Flexblocks shows ads; Saber does not.

### Which is updated more often, Flexblocks or Saber?

Flexblocks ships an update every 10 days, and Saber fortnightly. Most recently, Flexblocks was updated on June 7, 2026 and Saber on September 22, 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.*