Slapp Pro vs Slo
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Slapp Pro
This app allows professionals to quickly add context to photos by 'slapping' custom tags onto them. It integrates with your device's photo albums for easy organization and retrieval, streamlining documentation for various industries.
- Custom tags for photo context
- Seamless Photos album integration
- Create or select albums within the app
- Search photos by tags
- Fast interface for on-the-go use
- Import existing photos with tags
- Optimized for iPhone, iPad, and macOS
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Slapp Pro isn’t just another camera app—it’s a must-have photo documentation tool for anyone working in construction, filmmaking, prototyping & design, real estate, and more. With Slapp Pro, you start by quickly and easily creating tags that give your photos context. The tags are then ‘slapped’ onto the photos you take or import with the app, ensuring critical info sticks with the image, no matter where it's shared or stored. Slapp Pro seamlessly integrates with your Photos albums across all of your Apple devices. Stay organized by creating or selecting existing Photos albums directly from within the Slapp Pro app. Tags are embedded into the photo metadata, allowing you to easily search for and retrieve images. Initially built for filmmakers who use photo documentation for set decorating, scene continuity, location scouting, and more, Slapp Pro has found enthusiastic support from many other industries with its fast and easy-to-use interface, convenient features, and low cost. Slapp Pro is rapidly becoming a critical tool in job site and progress documentation, used on construction projects and renovations, archeological digs, and research and development. Slapp Pro has greatly reduced the tedious need to mark up and annotate photos after the fact or to use physical slates when capturing images. It puts on-the-go photo documentation in your pocket. Simply set your tags and fire away. Key Features • Custom tags ‘slapped’ onto your photos. • Seamless integration with the Photos albums across your Apple devices. • Effortlessly create or switch ‘save to’ albums within the app. • Quickly find photos by searching for your tags. • Lightning-fast interface for on-the-go efficiency. • ‘Slapp’ tags on up to 20 existing photos at a time with the ‘Import’ feature. • Optimized versions for iPhone, iPad, and MacOS, so you can use it on all your devices. • Security: your tags and photos are saved exclusively on your device and iCloud Photos albums. • Switch between front and rear cameras, toggle on/off flash. Join others in your field who are using Slapp Pro to streamline their processes. Download Slapp Pro now and start making your project photos work smarter for you! Slapp Pro is now the top choice for pros in: • Set design • Scene continuity • Prop management • Location scouting • Costume and wardrobe • Casting • Job site documentation • Construction • Renovations • Building inspection • Real estate • Forensic photography • Artifact cataloging, archiving, and curation • Field research and lab experiments • Progress documentation • Retail display management • Site surveys • Event setup • Design prototyping • Horticulture • And more!
Slo
Adjust the playback speed of slow-motion videos without altering the original video file. This app allows you to modify multiple videos simultaneously, with changes automatically saved to your Photos app. You can easily revert to the original slow-motion segments by editing within the Photos app.
- Adjust slow-motion playback range
- Batch processing for multiple videos
- Non-destructive video editing
- Automatic saving to Photos app
- Restore original slow-motion segments
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You can change multiple slow-motion videos at once. The adjusted videos are automatically updated in the Photos app. The actual slow-motion effect of the video is not deleted. The video file is not altered to lower the frame rate. Only the playback range of the slow-motion is adjusted, and you can restore the slow-motion segments anytime. Restore Slow-motion Bring the slow-motion back to videos you changed before. The app lists only slow-motion videos currently playing at normal speed, so you can select them and restore the original slow-motion in one batch. Share from Photos Select videos in the Photos app, tap Share, and choose Slo-mo-Remover. Pick Turn off or Restore, and the app processes all selected videos at once.
Screenshots
Verdict
The clearest difference is price: Slo at Free against Slapp Pro's $4.99. Slapp Pro's advantage is in-app purchases (none vs 1) and iOS requirement (15.0 vs 17.5). On rating, ratings volume, update cadence and ads there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Slo is free to download; Slapp Pro costs $4.99 up front. Slo sells 1 one-off in-app purchase. Slapp Pro asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for Slapp Pro against 5.0 for Slo. Both are backed by a comparable volume of ratings — 1 and 1 respectively.
Slapp Pro ships an update every 3 months, Slo every 4 months. The most recent releases landed on October 1, 2026 and October 13, 2026 respectively.
| Parameter | Slapp Pro | Slo |
|---|---|---|
| Price | $4.99 | Free — better |
| Rating | 5.0 (1 ratings) | 5.0 (1 ratings) |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 | 1 |
| Update frequency | Every 3 months — better | Every 4 months |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 17.5 |
| Further details — not scored | ||
| Size | 22 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | BalanceCG | Jeongun Kim |
Customer experience
Slapp Pro
Slo
In-app purchases
Slapp Pro
No in-app purchases
Slo
- Remove Video limit$0.99









