# CHECKER Field Surveyor vs The Source Mobile

The clearest difference is rating: CHECKER Field Surveyor at 5.0 against The Source Mobile's 3.7. CHECKER Field Surveyor also leads on update cadence (every 2 weeks vs every 4 weeks) and iOS requirement (10.0 vs 12.2). The Source Mobile's advantage is ratings volume (7 vs 1). 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.

CHECKER Field Surveyor holds the better App Store score, 5.0 against 3.7. That said, the two scores are not equally well evidenced: The Source Mobile has 7 ratings behind it against 1, so its average is the more settled of the two.

CHECKER Field Surveyor ships an update every 2 weeks, The Source Mobile every 4 weeks. The most recent releases landed on October 24, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | CHECKER Field Surveyor | The Source Mobile |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/checker-field-surveyor/id878098449/reviews)** | [3.7 (7 ratings)](https://appshunter.io/ios/app/the-source-mobile/id6467522920/reviews) |
| Number of ratings | 1 | **7** |
| Positive reviews | — | 60.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 4 weeks |
| Monetization | Free | Free |
| Size | 22 MB | 179 MB |
| Requires iOS | **10.0** | 12.2 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Mor Alon](https://appshunter.io/developer/878098452) | [TrendSource, Inc.](https://appshunter.io/developer/520270126) |

## What reviewers say

### CHECKER Field Surveyor

[App page](https://appshunter.io/ios/app/checker-field-surveyor/id878098449)

This app facilitates offline data collection for mystery shopping and other survey needs. It allows users to manage questionnaires, attach files, and take photos directly within the app, supporting multiple languages and synchronizing data with a server.

**Highlights:** Offline jobs management, Questionnaire variables, Synchronizes with server, Full download questionnaires structure and logic, File attachments, Take pictures directly from camera

**Features:** macOS Compatibility

**In-app purchases:** none


### The Source Mobile

[App page](https://appshunter.io/ios/app/the-source-mobile/id6467522920)

This app serves as a mobile companion for field agents, enabling them to manage their work on the go. It utilizes smartphone features like GPS and camera for project discovery, data input, and image uploads. The platform offers efficient tools for managing tasks, tracking time, and accessing support.

**Highlights:** View project details and manuals, Map project locations, Input data and save progress, Find projects by location or zip code, Confirm assigned projects, Check in/out of locations for time logging, Upload receipts, Contact support

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

**In-app purchases:** none


## Frequently asked questions

### Is CHECKER Field Surveyor free?

CHECKER Field Surveyor is free to download, with no in-app purchases.

### Is The Source Mobile free?

The Source Mobile is free to download, with no in-app purchases.

### Which has better reviews, CHECKER Field Surveyor or The Source Mobile?

CHECKER Field Surveyor is rated higher. CHECKER Field Surveyor averages 5.0 out of 5 from 1 ratings, while The Source Mobile averages 3.7 from 7 ratings.

### Do CHECKER Field Surveyor or The Source Mobile have ads?

Neither CHECKER Field Surveyor nor The Source Mobile shows ads.

### Which is updated more often, CHECKER Field Surveyor or The Source Mobile?

CHECKER Field Surveyor ships an update every 2 weeks, and The Source Mobile every 4 weeks. Most recently, CHECKER Field Surveyor was updated on October 24, 2026 and The Source Mobile on September 30, 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.*