# LIMSTAR vs SubSum

The clearest difference is in-app purchases: SubSum at none against LIMSTAR's 1. LIMSTAR's advantage is update cadence (weekly vs every 4 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. LIMSTAR sells 1 one-off in-app purchase. SubSum asks for nothing beyond the download.

LIMSTAR ships an update weekly, SubSum every 4 months. The most recent releases landed on June 2, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | LIMSTAR | SubSum |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Weekly** | Every 4 months |
| Size | 20 MB | 2 MB |
| Requires iOS | **16.0** | 17 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [羽 唐](https://appshunter.io/developer/1734231509) | [桥 汪](https://appshunter.io/developer/1658027527) |

## What reviewers say

### LIMSTAR

[App page](https://appshunter.io/ios/app/limstar/id6745580960)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| LIMSATR Life Member | $0.99 | one-time |


### SubSum

[App page](https://appshunter.io/ios/app/subsum/id6754885566)

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

**In-app purchases:** none


## Frequently asked questions

### Is LIMSTAR free?

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

### Is SubSum free?

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

### Do LIMSTAR or SubSum have ads?

Neither LIMSTAR nor SubSum shows ads.

### Which is updated more often, LIMSTAR or SubSum?

LIMSTAR ships an update weekly, and SubSum every 4 months. Most recently, LIMSTAR was updated on June 2, 2026 and SubSum on September 26, 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.*