# PlanarGSM vs ChatPDF

The clearest difference is in-app purchases: PlanarGSM at none against ChatPDF's 3. PlanarGSM also leads on iOS requirement (7.0 vs 16.0). ChatPDF's advantage is update cadence (daily vs every 5 months). On price, ads and device support there is nothing between them.

Both are free to download. ChatPDF sells 3 in-app purchases, starting at $4.99 per 7 days. PlanarGSM asks for nothing beyond the download.

PlanarGSM ships an update every 5 months, ChatPDF daily. The most recent releases landed on October 2, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | PlanarGSM | ChatPDF |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/planargsm/id952968491/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Daily** |
| Monetization | Free | — |
| Size | 45 MB | 15 MB |
| Requires iOS | **7.0** | 16.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [autoterm.ru](https://appshunter.io/developer/947283683) | [BERKCAN ARSLAN](https://appshunter.io/developer/1800916861) |

## What reviewers say

### PlanarGSM

[App page](https://appshunter.io/ios/app/planargsm/id952968491)

Remotely control PLANAR-2 air heaters and 14TS-Mini pre-heaters. Start, stop, adjust settings, and check device status. Schedule operation with the timer function.

**Highlights:** Remote start/stop, Adjust operating parameters, View current device status, Timer-based startup, SMS command control

**Features:** macOS Compatibility

**In-app purchases:** none


### ChatPDF

[App page](https://appshunter.io/ios/app/chatpdf-ai-pdf-summarizer/id6755740497)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ChatPDF Weekly Subscription | $4.99 | per 7 days |
| ChatPDF Monthly Subscription | $9.99 | per month |
| ChatPDF Yearly Subscription | $59.99 | per year |


## Frequently asked questions

### Is PlanarGSM free?

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

### Is ChatPDF free?

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

### Do PlanarGSM or ChatPDF have ads?

Neither PlanarGSM nor ChatPDF shows ads.

### Which is updated more often, PlanarGSM or ChatPDF?

PlanarGSM ships an update every 5 months, and ChatPDF daily. Most recently, PlanarGSM was updated on October 2, 2026 and ChatPDF on October 24, 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.*