Comparison

EngSyno vs StampValue

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

Head to head
About

EngSyno

Features
Read full description

EngSyno is a very simple and easy to use thesaurus with more than 30.000 entries and 2.500.000 words. Simply enter your synonym and press the search icon. In no time at all, EngSyno will find all valid synonyms. Features: -Easy user interface -Nice looking user interface -Extremely fast -No ads -No online access needed -More than 30.000 entries -More than 2.500.000 words Everything is stored directly on your phone, so no need for any type of connection. In other words - you are free to use the application anywhere - on an Ibiza beach, by the pool in Grand Canarias or on the Moon where no satisfactory mobile coverage is expected in a foreseeable future. Note: Please be patient first time installing. It will take up to 60 seconds to create the dictionary.

About

StampValue

Instantly identify and evaluate stamps using AI and a comprehensive database. Track your collection, calculate its total value, and learn about philately. Ideal for both new and experienced collectors.

Highlights
  • AI stamp recognition
  • Built-in stamp database
  • Favorites and value calculator
  • Collection management
  • Stamp value estimation
Features
Read full description

"StampValue helps you identify and evaluate stamps quickly and accurately. With AI technology and a professional database, it is the perfect tool for both beginners and experienced collectors. Key Features: #AI Stamp Recognition – Instantly identify stamps and check their value using advanced AI and professional prompts. #Built-in Stamp Database – Access detailed stamp information, an essential resource for beginners to learn and recognize stamps. #Favorites and Value Calculator – Save stamps in your personal collection, track them over time, and calculate the total value of your collection. Whether you are new to philately or a dedicated collector, StampValue makes stamp identification, learning, and collection management simple and reliable. Download now and start building your stamp collection with confidence. Privacy Policy: https://stamp.linxai.net/pages/legal/en-US/privacy-policy.html Terms of Use: https://stamp.linxai.net/pages/legal/en-US/terms-of-service.html

Screenshots

EngSyno3 screens
StampValue4 screens

Verdict

The call

The clearest difference is price: StampValue at Free against EngSyno's $0.99. StampValue also leads on update cadence (every 9 days vs every 20 months). EngSyno's advantage is in-app purchases (none vs 2) and iOS requirement (12.0 vs 15.1). On 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

StampValue is free to download; EngSyno costs $0.99 up front. StampValue sells 2 in-app purchases, starting at $4.99 per 7 days. EngSyno asks for nothing beyond the download.

UpkeepUpdate frequency

EngSyno ships an update every 20 months, StampValue every 9 days. The most recent releases landed on September 21, 2026 and September 27, 2026 respectively.

Scorecard4 real differences · 6 level
EngSyno versus StampValue: the parameters behind the verdict, then further details
ParameterEngSynoStampValue
Price$0.99Free — better
Rating—4.2 (18 ratings) — better
Positive reviews—66.7% of reviews
Number of ratings—18 — better
Update frequencyEvery 20 monthsEvery 9 days — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS12.0 — better15.1
Further details — not scored
Size45 MB49 MB
Age rating4+4+
DeveloperBo Peters伟烽 莫

In-app purchases

None

EngSyno

No in-app purchases

2 purchases

StampValue

Subscriptions2
  • StampValue Pro Weekly (1 Week)$4.997 Days
  • StampValue Pro Yearly (1 Year)$29.991 Year

Questions

Is EngSyno free?
EngSyno costs $0.99, with no in-app purchases.
Is StampValue free?
StampValue is free to download, with in-app purchases available.
Do EngSyno or StampValue have ads?
Neither EngSyno nor StampValue shows ads.
Which is updated more often, EngSyno or StampValue?
EngSyno ships an update every 20 months, and StampValue every 9 days. Most recently, EngSyno was updated on September 21, 2026 and StampValue on September 27, 2026.

Other comparisons