# Calamp Installation Manager vs TopGuru

The clearest difference is rating: Calamp Installation Manager at 5.0 against TopGuru's 3.5. Calamp Installation Manager also leads on in-app purchases (none vs 10). TopGuru's advantage is ratings volume (414 vs 1) and chart position (#137 vs unranked). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. TopGuru sells 9 in-app purchases, starting at $9.99 per month. Calamp Installation Manager asks for nothing beyond the download.

Calamp Installation Manager holds the better App Store score, 5.0 against 3.5. That said, the two scores are not equally well evidenced: TopGuru has 414 ratings behind it against 1, so its average is the more settled of the two.

Calamp Installation Manager ships an update every 2 months, TopGuru every 3 weeks. The most recent releases landed on November 3, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | Calamp Installation Manager | TopGuru |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/calamp-installation-manager/id1641686077/reviews)** | [3.5 (414 ratings)](https://appshunter.io/ios/app/topguru/id6451488210/reviews) |
| Number of ratings | 1 | **414** |
| Positive reviews | — | 29.3% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Best chart rank | — | **#137** |
| Size | 78 MB | 2.2 GB |
| Requires iOS | 15.1 | **15.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [CalAmp Corp](https://appshunter.io/developer/925390797) | [HK TOPDON TECHNOLOGY Co., LIMITED](https://appshunter.io/developer/1846276192) |

## What reviewers say

### Calamp Installation Manager

[App page](https://appshunter.io/ios/app/calamp-installation-manager/id1641686077)

This utility app streamlines the setup and verification process for telematic devices. It simplifies configuration tasks, ensuring devices are correctly installed and validated.

**Highlights:** Device configuration, Device validation, Telematic device setup, Installation simplification

**In-app purchases:** none


### TopGuru

[App page](https://appshunter.io/ios/app/topguru/id6451488210)

**Currently charting:** #137 Top Grossing · Utilities (US App Store)

Transform your phone or tablet into a powerful vehicle diagnostic tool via Bluetooth. Access full system diagnosis, OBDII functions, bi-directional controls, and essential maintenance services for a wide range of car brands. Generate detailed diagnostic reports for efficient troubleshooting.

**Highlights:** Full System Diagnosis, Full OBD2 Functions, Bi-directional Control, 8 Special Maintenance Functions, AutoVIN Vehicle Identification, Diagnostic Report Generation, Wireless Bluetooth 5.0 Connection

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

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Auto-renewal | $9.99 | per month |
| Monthly Auto-renewal | $19.00 | per month |
| Quarterly Auto-renewal | $24.99 | per 3 months |
| Annual Auto-renewal | $49.99 | per year |
| Annual Auto-renewal | $99.00 | per year |
| Diag Bundle Renewal | $49.99 | one-time |
| Renewal Bundle | $99.00 | one-time |
| 22 Special Functions Bundle | $129.99 | one-time |
| 17 Special Functions Bundle | $179.00 | one-time |

**What reviewers like**

- 👍 Works well on most vehicles
- 🚀 Powerful features for the price
- 💡 Useful for DIY and professional mechanics

**What reviewers complain about**

- 🐛 Frequent app crashes and bugs
- ⏱️ Slow and cumbersome to use due to constant updates
- 🔒 Concerns about data privacy and security
- 💰 Subscription model after initial purchase

**Reported bugs**

- Incompatibility with certain vehicle models
- Login and account issues
- Unreliable Bluetooth connectivity

**Requested features**

- iPad optimization and full-screen support
- Expanded vehicle coverage, especially for motorcycles
- Ability to save and export diagnostic data


## Frequently asked questions

### Is Calamp Installation Manager free?

Calamp Installation Manager is free to download, with no in-app purchases.

### Is TopGuru free?

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

### Which has better reviews, Calamp Installation Manager or TopGuru?

Calamp Installation Manager is rated higher. Calamp Installation Manager averages 5.0 out of 5 from 1 ratings, while TopGuru averages 3.5 from 414 ratings.

### Do Calamp Installation Manager or TopGuru have ads?

Neither Calamp Installation Manager nor TopGuru shows ads.

### Which is updated more often, Calamp Installation Manager or TopGuru?

Calamp Installation Manager ships an update every 2 months, and TopGuru every 3 weeks. Most recently, Calamp Installation Manager was updated on November 3, 2026 and TopGuru on November 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.*