# LSDF e vs 321.fit

The clearest difference is ads: LSDF e at none against 321.fit's shown. LSDF e also leads on iOS requirement (12.0 vs 17.0). 321.fit's advantage is update cadence (every 4 days vs monthly). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

LSDF e ships an update monthly, 321.fit every 4 days. The most recent releases landed on September 15, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | LSDF e | 321.fit |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Monthly | **Every 4 days** |
| Size | 10 MB | 99 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Sergejs Litvinovskis](https://appshunter.io/developer/1581970645) | [Summer Advisors Ltd](https://appshunter.io/developer/1520978630) |

## What reviewers say

### LSDF e

[App page](https://appshunter.io/ios/app/lsdf-e-karte/id1581970643)

**Features:** macOS Compatibility

**In-app purchases:** none


### 321.fit

[App page](https://appshunter.io/ios/app/321fit/id6471964595)

**Features:** Apple Wallet

**In-app purchases:** none


## Frequently asked questions

### Is LSDF e free?

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

### Is 321.fit free?

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

### Do LSDF e or 321.fit have ads?

321.fit shows ads; LSDF e does not.

### Which is updated more often, LSDF e or 321.fit?

LSDF e ships an update monthly, and 321.fit every 4 days. Most recently, LSDF e was updated on September 15, 2026 and 321.fit on October 7, 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.*