# Meter readings | Read, save vs PQDIF Viewer

The clearest difference is in-app purchases: PQDIF Viewer at none against Meter readings | Read, save's 10. PQDIF Viewer also leads on ads (none vs shown) and update cadence (every 3 days vs every 2 weeks). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Meter readings | Read, save sells 10 in-app purchases, starting at $0.99 per month. PQDIF Viewer asks for nothing beyond the download.

Meter readings | Read, save ships an update every 2 weeks, PQDIF Viewer every 3 days. The most recent releases landed on September 17, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Meter readings | Read, save | PQDIF Viewer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 2 weeks | **Every 3 days** |
| Size | 242 MB | 4 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Moritz Karrasch](https://appshunter.io/developer/1734764152) | [Russell Patterson](https://appshunter.io/developer/1723606459) |

## What reviewers say

### Meter readings | Read, save

[App page](https://appshunter.io/ios/app/meter-readings-read-save/id6479006613)

**Features:** macOS Compatibility, Family Sharing, Vision Pro support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly ad-free subscription | $0.99 | per month |
| Yearly ad-free subscription | $8.99 | per year |
| Donation XXS | $0.99 | one-time |
| Donation XS | $1.99 | one-time |
| Donation S | $3.99 | one-time |
| Donation M | $8.99 | one-time |
| Donation L | $17.99 | one-time |
| Ad-Free | $22.99 | one-time |
| Donation XL | $44.99 | one-time |
| Donation XXL | $89.99 | one-time |


### PQDIF Viewer

[App page](https://appshunter.io/ios/app/pqdif-viewer/id6769140607)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Meter readings | Read, save free?

Meter readings | Read, save is free to download, with in-app purchases available.

### Is PQDIF Viewer free?

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

### Do Meter readings | Read, save or PQDIF Viewer have ads?

Meter readings | Read, save shows ads; PQDIF Viewer does not.

### Which is updated more often, Meter readings | Read, save or PQDIF Viewer?

Meter readings | Read, save ships an update every 2 weeks, and PQDIF Viewer every 3 days. Most recently, Meter readings | Read, save was updated on September 17, 2026 and PQDIF Viewer on September 21, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*