# Rustar vs True Caller

The clearest difference is in-app purchases: Rustar at none against True Caller's 1. Rustar also leads on ads (none vs shown) and iOS requirement (13.0 vs 15.1). On price, update cadence and device support there is nothing between them.

Both are free to download. True Caller sells 1 one-off in-app purchase. Rustar asks for nothing beyond the download.

Rustar ships an update every 5 months, True Caller every 3 months. The most recent releases landed on October 6, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Rustar | True Caller |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.0 (4 ratings)](https://appshunter.io/ios/app/true-caller-caller-id/id6738844308/reviews)** |
| Number of ratings | — | **4** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 5 months | **Every 3 months** |
| Monetization | — | Free with in-app purchases |
| Size | 60 MB | 46 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [斌 祝](https://appshunter.io/developer/1532848267) | [Jamal Ud Din](https://appshunter.io/developer/1761335372) |

## What reviewers say

### Rustar

[App page](https://appshunter.io/ios/app/rustar/id6456845400)

**Features:** macOS Compatibility

**In-app purchases:** none


### True Caller

[App page](https://appshunter.io/ios/app/true-caller-caller-id/id6738844308)

Identify unknown callers, block spam, and access contact details with real photos. This app offers a smart dialer, location sharing, and a live compass for enhanced communication and navigation.

**Highlights:** Identify unknown callers, Block spam and fraud, Reverse phone lookup, Real contact photos, Smart dialer, Location sharing, Live compass

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Access | $3.99 | one-time |


## Frequently asked questions

### Is Rustar free?

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

### Is True Caller free?

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

### Do Rustar or True Caller have ads?

True Caller shows ads; Rustar does not.

### Which is updated more often, Rustar or True Caller?

Rustar ships an update every 5 months, and True Caller every 3 months. Most recently, Rustar was updated on October 6, 2026 and True Caller on October 14, 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.*