# Grades & To vs PDFIX

The clearest difference is iOS requirement: PDFIX at 13.0 against Grades & To's 17.6. On price, update cadence, 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.

Grades & To ships an update every 10 days, PDFIX fortnightly. Both last shipped on November 8, 2026.

## The numbers

| Metric | Grades & To | PDFIX |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 10 days** | Fortnightly |
| Size | 4 MB | 67 MB |
| Requires iOS | 17.6 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Timo Kamphaus](https://appshunter.io/developer/1780066528) | [Mauritz Jarl Software House LLC](https://appshunter.io/developer/1474194996) |

## What reviewers say

### Grades & To

[App page](https://appshunter.io/ios/app/grades-and-to-dos-study-guru/id6738301948)

**Features:** macOS Compatibility

**In-app purchases:** none


### PDFIX

[App page](https://appshunter.io/ios/app/pdfix/id6741908625)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Grades & To free?

Grades & To is free to download, with no in-app purchases.

### Is PDFIX free?

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

### Do Grades & To or PDFIX have ads?

Neither Grades & To nor PDFIX shows ads.

### Which is updated more often, Grades & To or PDFIX?

Grades & To ships an update every 10 days, and PDFIX fortnightly. Most recently, Grades & To was updated on November 8, 2026 and PDFIX on November 8, 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.*