# 1Sim Assist vs Jumpstash

The clearest difference is rating: Jumpstash at 4.2 against 1Sim Assist's 1.0. Jumpstash also leads on update cadence (every 2 weeks vs every 5 weeks) and ratings volume (5 vs 1). 1Sim Assist's advantage is iOS requirement (8.0 vs 16.6). On price, ads, in-app purchases and monetization model there is nothing between them.

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

Jumpstash holds the better App Store score, 4.2 against 1.0. That said, the two scores are not equally well evidenced: Jumpstash has 5 ratings behind it against 1, so its average is the more settled of the two.

1Sim Assist ships an update every 5 weeks, Jumpstash every 2 weeks. The most recent releases landed on October 11, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | 1Sim Assist | Jumpstash |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/1sim-assist/id862469463/reviews) | **[4.2 (5 ratings)](https://appshunter.io/ios/app/jumpstash/id1465670860/reviews)** |
| Number of ratings | 1 | **5** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 2 weeks** |
| Monetization | Free | Free |
| Size | 17 MB | 17 MB |
| Requires iOS | **8.0** | 16.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod, Mac, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Belmont Telecom, Inc.](https://appshunter.io/developer/510353132) | [Michael Mackintosh II](https://appshunter.io/developer/1281426136) |

## What reviewers say

### 1Sim Assist

[App page](https://appshunter.io/ios/app/1sim-assist/id862469463)

This app helps international travelers make mobile calls while roaming. It automatically corrects misdialed numbers by adding international prefixes and country codes, and managing leading zeros. This reduces billing errors and user frustration.

**Highlights:** Automatic number correction, Adds international prefixes, Adds country codes, Manages leading zeros, Works with any SIM card

**Features:** macOS Compatibility

**In-app purchases:** none


### Jumpstash

[App page](https://appshunter.io/ios/app/jumpstash/id1465670860)

Securely store backup codes for your accounts in iCloud Keychain. Access them from any device logged into iCloud, ensuring you never lose access to your important services.

**Highlights:** Secure backup code storage, iCloud Keychain integration, Cross-device access, Account lockout prevention, Token generation backup

**In-app purchases:** none


## Frequently asked questions

### Is 1Sim Assist free?

1Sim Assist is free to download, with no in-app purchases.

### Is Jumpstash free?

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

### Which has better reviews, 1Sim Assist or Jumpstash?

Jumpstash is rated higher. 1Sim Assist averages 1.0 out of 5 from 1 ratings, while Jumpstash averages 4.2 from 5 ratings.

### Do 1Sim Assist or Jumpstash have ads?

Neither 1Sim Assist nor Jumpstash shows ads.

### Which is updated more often, 1Sim Assist or Jumpstash?

1Sim Assist ships an update every 5 weeks, and Jumpstash every 2 weeks. Most recently, 1Sim Assist was updated on October 11, 2026 and Jumpstash on October 1, 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.*