Comparison

Photo Assembly vs Slowmo Pro

Price, ratings, monetisation and update history for both apps, side by side β€” with what reviewers say about each.

Head to head
About

Photo Assembly

Features
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Different photos, one perfectly aligned creation β€” merged, cut out, and lined up exactly how you want, without ever leaving your phone. FACES THAT LINE UP ACROSS PHOTOS PhotoAssembly automatically aligns faces from one photo to another β€” same spot, same size. Build a family growth board, a before/after, or "the same face over the years" β€” one tap aligns every photo at once. BUILD YOUR COMPOSITION Add as many photos as you want to a free-form canvas. Move, resize, rotate, layer, and let Auto Arrange lay them out into a clean grid instantly. Magnetic guides keep everything lined up, undo/redo covers you if you change your mind, and every project autosaves β€” keep as many separate projects as you like. REMOVE ANY BACKGROUND Cut out people, pets or objects from a photo in one tap, then touch up the edges with a brush. Three built-in one-tap presets go further: turn a photo into a chat sticker, blur the background like a portrait shot, or drop a clean white studio backdrop behind your subject β€” ready to list on a resale or marketplace app. 100% PRIVATE, ON YOUR DEVICE ONLY No account, no cloud, no upload β€” ever. Every tool, including background removal and face blur, runs locally on your phone. Your photos never leave your device. BLUR FACES AND SENSITIVE INFO Swipe over a face, a name, or a license plate to blur or pixelate it, or blur every face in a photo with one tap β€” processed on-device, nothing sent anywhere. FAIR PRICING, NO SUBSCRIPTION Every editing tool is free and unlimited β€” cutout, alignment, blur, presets, all of it. Only exporting is capped: 1 free export a day, more by watching a short ad, or unlock unlimited exports for good with a single one-time Lifetime purchase. No subscription, ever. Frames, filters, manual adjustments, custom backgrounds, blend modes, and export sizes for Instagram, TikTok, YouTube or print β€” all included, all free. Download PhotoAssembly and turn your photos into one creation β€” privately.

About

Slowmo Pro

Features
Read full description

Capture more moments. Decide how time moves afterward. Slowmo Pro is a camera-first slow-motion studio. Choose a frame rate your current camera really supports, record with the active FPS and resolution always visible, and open the finished take directly in a complete editor. CAPTURE WITH CONFIDENCE β€’ Choose from supported 30, 60, 120, and 240 FPS formats β€’ See the exact committed frame rate and resolution before recording β€’ Switch cameras with automatic frame-rate revalidation β€’ Get a low-light hint when high-speed capture needs more light β€’ Keep a persistent red recording indicator and elapsed time on screen β€’ Recover a playable take after an interrupted session SHAPE SLOW MOTION IN POST β€’ Start with the full take slowed automatically, then add more sections if needed β€’ Adjust section boundaries and speed with a clear slider at any time β€’ See the effective frame rate for the selected speed and where 30 real FPS ends β€’ Step frame by frame for precise timing β€’ Choose 30 or 60 FPS output β€’ See exactly where captured frames end and synthesized frames begin β€’ Keep pitch-preserving audio or create a silent slow-motion take SMOOTH MOTION, HONESTLY LABELED Slowmo Pro uses every real captured frame first. If you push a section beyond the capture budget, choose Blend or Enhanced Smooth Motion. Enhanced uses on-device motion estimation and automatically falls back to Blend when needed, so one difficult frame never ruins the whole render. NON-DESTRUCTIVE BY DESIGN Every speed-ramp edit renders from the untouched original captureβ€”not from a previous slow-motion copy. Reopen the tool, change your timing, or remove the effect without degrading the source. A COMPLETE EDITOR AFTER CAPTURE Trim and split clips, add captions, text, graphics, color adjustments, audio, transitions, and effects, then export for your preferred social format. Import existing high-frame-rate footage from Photos or Files too. PRIVATE BY DESIGN Recording, motion estimation, editing, and export run on your device. No account is required. Your video and audio are not uploaded to our server. Your first successful export is watermark-free. After that, Watermark-Free Export is an optional Pro purchase that removes only the watermark from exported videos. Every capture, Smooth Motion, editing, and export tool remains available for free. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Photo Assembly4 screens
Slowmo Pro4 screens

Verdict

The call

The clearest difference is ads: Slowmo Pro at none against Photo Assembly's shown. Photo Assembly's advantage is iOS requirement (17.0 vs 26.0). On price, in-app purchases and device support there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Photo Assembly sells 1 one-off in-app purchase and Slowmo Pro sells 3 in-app purchases, starting at $0.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Scorecard2 real differences Β· 4 level
Photo Assembly versus Slowmo Pro: the parameters behind the verdict, then further details
ParameterPhoto AssemblySlowmo Pro
PriceFreeFree
Update frequencyβ€”Every 3 weeks
AdsYesNo β€” better
In-app purchasesYesYes
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.0 β€” better26.0
Further details β€” not scored
Size83 MB55 MB
Age rating4++17
DeveloperEL MEHDI OUHAMMOUJIRI CHOMAT

In-app purchases

1 purchases

Photo Assembly

One-time1
  • Lifetime Access$3.99
3 purchases

Slowmo Pro

Subscriptions2
  • Weekly$0.997 Days
  • Monthly$2.991 Month
One-time1
  • Lifetime$39.99

Questions

Is Photo Assembly free?
Photo Assembly is free to download, with in-app purchases available.
Is Slowmo Pro free?
Slowmo Pro is free to download, with in-app purchases available.
Do Photo Assembly or Slowmo Pro have ads?
Photo Assembly shows ads; Slowmo Pro does not.

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