Comparison

Souma vs Perception Assist

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

Head to head
About

Souma

Features
Read full description

Souma est une application destinée au public, elle permet de vérifier le prix des produits alimentaires ou cosmétiques dans plusieurs supermarchés, ou dans un supermarché spécifique, en plus vous pouvez avoir un comparatif d'un produit dans plusieurs supermarchés et avoir l'endroit le moins cher , Il suffit de scanner le code barre disponible sur le produit, et dans quelques instants vous aurez le détail du prix ainsi que s'il est en promotion ou non, [:mav: 24.15.0]

About

Perception Assist

This app uses AI to help blind and visually impaired users understand their surroundings. It provides voice guidance and haptic cues for outdoor risks, scene analysis, and object detection, with both on-device and cloud-assisted capabilities.

Highlights
  • Outdoor risk recognition
  • AI scene analysis
  • Automatic detection mode
  • Multilingual voice feedback
  • On-device and cloud processing
  • Accessible interaction design
  • Privacy protection
Features
Read full description

Perception Assist (Perceive World Assist) is an environmental awareness and voice guidance assistant designed for blind, visually impaired, and low-vision users. The app combines on-device visual detection, scene understanding, spoken feedback, and haptic cues to help users understand their surroundings more quickly. Even with weak or no network connection, on-device capabilities can provide basic environmental recognition and risk prompts. When a network is available, cloud AI can provide more detailed scene and object analysis. Accessible reading Version 1.9.0 expands accessible reading. 1. Browse, search, download, and read Project Gutenberg public-domain books, with offline reopening and download progress. 2. Import DRM-free EPUB and TXT files, and open PDFs up to 200 MB. 3. Switch among original text, smart-recognized text, and translations while keeping positions, bookmarks, notes, and search aligned. 4. Follow reading keeps the active line near the center with word highlighting; Listen mode can continue when the screen is locked. 5. Translation and smart recognition continue in sections, announce progress, and resume saved translated content. 6. Adds Siri reading controls and improves long-document positioning, scrolling, VoiceOver feedback, and stability. Key Features Outdoor risk recognition Detects selected traffic signals, crosswalks, bicycles, cars, approaching vehicles, and other elements, then provides voice prompts for potential surrounding risks. AI scene analysis Uses advanced AI models to interpret people, objects, spatial layout, and visible text, making indoor and outdoor environments easier to understand. Automatic detection mode Open the app and it can start automatically, reducing complex operations and helping users enter an assisted recognition state more quickly. Multilingual voice feedback Supports multiple spoken languages, adapts to the system language or user selection, and allows speech rate adjustment. On-device first, cloud assisted Basic recognition is mainly performed on device and remains available with weak or no network connection. When online, cloud AI can provide richer scene descriptions and review results. Accessible interaction design Combines voice, vibration cues, and accessible interface elements to provide detection status, scene overview, operation guidance, and assistive feedback. Privacy protection Visual and audio data are processed on device by default. No account registration is required. Except when users actively use optional cloud-assisted analysis, the app does not store personal visual or audio data. Usage suggestion For a more stable recognition experience, use headphones, bone-conduction headphones, or a chest phone mount. Safety Notice Perception Assist (Perceive World Assist) is an accessibility aid that uses the device camera to provide environmental audio and haptic cues. It does not measure health metrics and does not provide medical advice, diagnosis, treatment, or professional navigation services. Detection results may be inaccurate or incomplete and may be affected by lighting, weather, obstacles, camera angle, device movement, or network conditions. Always rely primarily on a cane, guide dog, or other mobility aid, follow official traffic signals and road signs, and act with your own judgment or assistance from trusted people. Do not use this app as the sole basis for crossing streets, navigation decisions, or any potentially dangerous situation. All information provided by the app is assistive and for reference only. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Souma4 screens
Perception Assist3 screens

Verdict

The call

The clearest difference is in-app purchases: Souma at none against Perception Assist's 6. Souma also leads on update cadence (every 4 days vs every 2 weeks) and device support (3 vs 1). On price 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Perception Assist sells 6 in-app purchases, starting at $4.99 per month. Souma asks for nothing beyond the download.

UpkeepUpdate frequency

Souma ships an update every 4 days, Perception Assist every 2 weeks. The most recent releases landed on September 17, 2026 and September 14, 2026 respectively.

Scorecard4 real differences · 6 level
Souma versus Perception Assist: the parameters behind the verdict, then further details
ParameterSoumaPerception Assist
PriceFreeFree
Rating—3.7 (3 ratings) — better
Positive reviews—0.0% of reviews
Number of ratings—3 — better
Update frequencyEvery 4 days — betterEvery 2 weeks
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS12.0 — better18.0
Further details — not scored
Size46 MB60 MB
Age rating17+12+
DeveloperBOULOUZA NASSERNanjing Zutuanqu Information Science & Technology Co.,Ltd

In-app purchases

None

Souma

No in-app purchases

6 purchases

Perception Assist

Subscriptions2
  • Cloud AI Guard Monthly Plan$4.991 Month
  • Cloud AI Annual Protection Plan$59.991 Year
One-time4
  • Basic Detection Pack$0.99
  • Temp Boost Pack$4.99
  • Short-Term Boost Pack$6.99
Show 1 more
  • Travel Boost Pack$129.99

Questions

Is Souma free?
Souma is free to download, with no in-app purchases.
Is Perception Assist free?
Perception Assist is free to download, with in-app purchases available.
Do Souma or Perception Assist have ads?
Neither Souma nor Perception Assist shows ads.
Which is updated more often, Souma or Perception Assist?
Souma ships an update every 4 days, and Perception Assist every 2 weeks. Most recently, Souma was updated on September 17, 2026 and Perception Assist on September 14, 2026.

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