Comparison

RTB LOC.id vs Zuzanka

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

Head to head
About

RTB LOC.id

This mobile utility enhances daily accessibility by automatically activating acoustic signals at public transport and traffic systems. It helps users navigate their environment more easily by providing audio cues for accessibility features.

Highlights
  • Automatic acoustic signal activation
  • Traffic light assistance
  • Public transport integration
  • Everyday accessibility improvement
  • Proximity-based activation
Features
Read full description

LOC.id is the little mobile helper in your pocket that improves accessibility in your everyday life. The LOC.id app automatically turns on acoustic guide signals at traffic lights, trains, buses and other supported accessibility systems when you're nearby.

About

Zuzanka

This app scans expiry dates, barcodes, and QR codes on food products. It converts expiry dates to text, offers product information, and supports visually impaired users with features like guiding sounds and voice output. Keep your kitchen organized and your food fresh.

Highlights
  • Expiry date scanning with guiding sounds
  • Barcode and QR code scanning
  • Product information lookup
  • Customizable contrast and voice output
  • Export scanned data
  • OCR feature for text recognition
Features
Read full description

Zuzanka is the world's first expiry date, barcode and QR code scanner. The app quickly locates expiry dates on food products, converts them to text format and allows export to other applications. You can also scan barcodes and QR codes, create custom labels and search for additional information about products. Thanks to our special algorithm you will instantly learn all the information about a product that you hold in your hand. Zuzanka was developed to support the blind and visually impaired people, but it will be useful to anyone who wants to keep their kitchen tidy. Having trouble finding the expiration date on the packaging? Can't see the small font that the date is written in? Do you want to check if the product in your fridge is still edible? Don’t know if you hold cream or jogurt in your hand? Want to learn what’s inside a package that you’ve been keeping on that shelf for months?The Zuzanka app is for you! * Easily find the expiration date on the packaging. The guiding sounds generated by your device will help you with this. If the scanned date indicates that the product is expired, the application will additionally inform you about it. * Wondering where to look for expiration dates? Check out the special section where we share our experience gained by taking several thousand photos of expiration dates. * Do you have doubts whether the app recognized the date correctly? No problem. Share a photo with a friend. You can also zoom and rotate the scanned expiration date photo. * Share the recognized date with e.g. to the Notes or Calendar app. * Turn on the contrast mode and read the expiration date in a synthetic voice. You can also zoom in on the recognized date to make it easier to see. All buttons and fonts meet contrast requirements. You can customize them to your needs. * Want to learn what’s the product you hold in your hand? No problem! The app quickly scans barcodes and QR codes. Thanks to our specially designed, unique algorithm you will get instant information about barcodes on most of the products. * If all fails, you can always the built-in OCR feature. Just shake your phone and it will switch into CR mode. Shake again and you will return to scanning. No need to open other applications, Zuzanka offers everything you need to learn about your food products. * The application is fully compatible with VoiceOver. * Use haptic feedback to know when the scanner has started or detected a date, barcode or QR code without having to listen to sounds. Zuzanka is the fulfillment of a need reported by a blind person with whom we work in the team. The release of the app and any additional features is always preceded by tests with blind and visually impaired users. Do you want to report a problem in the functioning of the app? Have ideas on how to improve it? Feel free to contact us: kontakt@zatoichi.pl. You can use the app for free. To scan expiry dates, barcodes and QR codes, the app offers a free 2-week trial, free one scan once a day, free one-day access once a month for the first few months. The app also offers in-app purchases that give you unlimited access to the expiry date, barcode and QR code scanning feature. You can purchase a lifetime access and pay only once, or you can purchase auto-renewable subscription. Privacy policy: https://zuzanka-terms-of-use.web.app/privacy-policy Terms of Use: https://zuzanka-terms-of-use.web.app/terms-of-use

Screenshots

RTB LOC.id2 screens
Zuzanka4 screens

Verdict

The call

The clearest difference is review sentiment: Zuzanka at 100% against RTB LOC.id's 38%. Zuzanka also leads on update cadence (fortnightly vs every 3 months) and iOS requirement (12.0 vs 15.0). RTB LOC.id's advantage is in-app purchases (none vs 4). On price, ads and device support 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. Zuzanka sells 4 in-app purchases, starting at $5.00 per month. RTB LOC.id asks for nothing beyond the download.

UpkeepUpdate frequency

RTB LOC.id ships an update every 3 months, Zuzanka fortnightly. The most recent releases landed on October 17, 2026 and October 8, 2026 respectively.

Scorecard5 real differences · 5 level
RTB LOC.id versus Zuzanka: the parameters behind the verdict, then further details
ParameterRTB LOC.idZuzanka
PriceFreeFree
Rating—4.5 (2 ratings) — better
Positive reviews37.5% of reviews100.0% of reviews — better
Number of ratings—2 — better
Update frequencyEvery 3 monthsFortnightly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS15.012.0 — better
Further details — not scored
Size39 MB159 MB
Age rating4+4+
DeveloperRTB ElektronikZatoichi Sp. z o.o.

Customer experience

RTB LOC.id

Written reviews8 reviews
Positive37.5%
Neutral12.5%
Negative50.0%

Zuzanka

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

RTB LOC.id

No in-app purchases

4 purchases

Zuzanka

Subscriptions3
  • Product scanning - Monthly1 Month trial$5.001 Month
  • Product scanning - 6 mos.6 Months trial$20.006 Months
  • Product scanning - Annual1 Year trial$35.001 Year
One-time1
  • Product scanning - Lifetime$79.00

Questions

Is RTB LOC.id free?
RTB LOC.id is free to download, with no in-app purchases.
Is Zuzanka free?
Zuzanka is free to download, with in-app purchases available.
Do RTB LOC.id or Zuzanka have ads?
Neither RTB LOC.id nor Zuzanka shows ads.
Which is updated more often, RTB LOC.id or Zuzanka?
RTB LOC.id ships an update every 3 months, and Zuzanka fortnightly. Most recently, RTB LOC.id was updated on October 17, 2026 and Zuzanka on October 8, 2026.

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