# iTechSIM vs Lempart Flex

The clearest difference is update cadence: Lempart Flex at every 5 days against iTechSIM's every 2 weeks. iTechSIM's advantage is iOS requirement (15.0 vs 17.0). On price, ads, 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.

iTechSIM ships an update every 2 weeks, Lempart Flex every 5 days. Both last shipped on October 31, 2026.

## The numbers

| Metric | iTechSIM | Lempart Flex |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/lempart-flex-travel-esim/id6810376997/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 5 days** |
| Monetization | — | Free |
| Size | 43 MB | 92 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [iTechSIM](https://appshunter.io/developer/6800239361) | [Lempart LLC](https://appshunter.io/developer/6810376999) |

## What reviewers say

### iTechSIM

[App page](https://appshunter.io/ios/app/itechsim/id6800239359)

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

**In-app purchases:** none


### Lempart Flex

[App page](https://appshunter.io/ios/app/lempart-flex-travel-esim/id6810376997)

This app offers unlimited data plans for travel, eliminating the need to track gigabytes. Enjoy full speed up to a daily limit, with a steady speed for essential services afterward. Plans are prepaid, refundable until installed, and can be purchased for others.

**Highlights:** Unlimited data plans for travel, Fixed pricing, no hidden fees, Full speed up to daily limit, Install eSIM in minutes, Keep your existing phone number, Create private circles for sharing plans

**In-app purchases:** none


## Frequently asked questions

### Is iTechSIM free?

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

### Is Lempart Flex free?

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

### Do iTechSIM or Lempart Flex have ads?

Neither iTechSIM nor Lempart Flex shows ads.

### Which is updated more often, iTechSIM or Lempart Flex?

iTechSIM ships an update every 2 weeks, and Lempart Flex every 5 days. Most recently, iTechSIM was updated on October 31, 2026 and Lempart Flex on October 31, 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.*