Comparison

Decypher vs Fossil Identifier

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

Head to head
About

Decypher

Explore the history and significance of UK post boxes and street furniture. This app uses your camera and AI to identify and provide information about these everyday objects.

Highlights
  • AI-powered identification
  • Learn about post box history
  • Discover street furniture details
  • Uses device camera
  • UK-focused content
Read full description

Did you know that post boxes in the United Kingdom can tell you a lot about their history and the one of your neighbourhood? Both their shape and the ‘royal cyphers’ they carry can tell you a lot if you know where to look. Decypher uses your camera and AI to tell you more about post boxes and other street furniture around the UK.

About

Fossil Identifier

Instantly identify fossils from a photo using advanced AI. Get detailed insights into species, age, rarity, and more. Explore a vast database of prehistoric discoveries, perfect for enthusiasts and professionals alike.

Highlights
  • Instant AI identification from photos
  • Detailed fossil insights (classification, age, rarity)
  • Vast fossil database access
  • Educational and user-friendly interface
  • Explore prehistoric world
Features
Read full description

Discover the Past with Fossil AI: Your Ultimate Fossil Identifier Step into Earth's ancient history with the Fossil Identifier App: Identify Fossils! Powered by cutting-edge AI, this app instantly identifies fossils from a single image, providing you with rich insights into each remarkable discovery. Whether you're a professional paleontologist, a passionate collector, or just beginning your fossil journey, Fossil AI is the perfect tool to explore the prehistoric world. Key Features: Instant Identification – Snap or upload a photo, and our AI will recognize the fossil within seconds. Detailed Fossil Insights – Learn about species classification, geological age, formation, rarity, and more. Vast Fossil Database – Access an extensive collection spanning different geological periods and locations. Educational & User-Friendly – Ideal for hobbyists, students, and experts, making fossil learning effortless. Subscription automatically renews unless auto-renew is cancelled at least 24-hours before the end of the current period. The subscription fee is charged to your iTunes account at the confirmation of purchase. You may manage your subscription and turn off auto-renewal by going to your Account Settings after purchase. Per Apple policy, no cancellation of the current subscription is allowed during active subscription period. Once purchased, refunds will not be provided for any unused portion of the term. Terms of Use: https://sites.google.com/view/fossilidentifier/terms-of-service Privacy Policy: https://sites.google.com/view/fossilidentifier/privacy-policy

Screenshots

Decypher4 screens
Fossil Identifier4 screens

Verdict

The call

The clearest difference is in-app purchases: Decypher at none against Fossil Identifier's 3. Decypher also leads on ads (none vs shown) and review sentiment (100% vs 69%). Fossil Identifier's advantage is device support (3 vs 1). On price and iOS requirement 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. Fossil Identifier sells 3 in-app purchases, starting at $3.99 per 7 days. Decypher asks for nothing beyond the download.

UpkeepUpdate frequency

Decypher ships an update daily, Fossil Identifier every 4 weeks. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

Scorecard6 real differences · 4 level
Decypher versus Fossil Identifier: the parameters behind the verdict, then further details
ParameterDecypherFossil Identifier
PriceFreeFree
Rating—4.4 (160 ratings) — better
Positive reviews100.0% of reviews — better68.6% of reviews
Number of ratings—160 — better
Update frequencyDaily — betterEvery 4 weeks
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS16.015.0 — better
Further details — not scored
Size69 MB67 MB
Age rating4+4+
DeveloperNew Material, Inc.Sinh Nguyen Mai

Customer experience

Decypher

Written reviews4 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Fossil Identifier

All ratings152 ratings
Positive86.2%
Neutral2.6%
Negative11.2%
Written reviews35 reviews
Positive68.6%
Neutral2.9%
Negative28.6%

Bugs and requests

Decypher

Not enough reviews yet to summarise bugs or requests.

Fossil Identifier

Reported bugs

2 issues
  • Error messages on every submission
  • Unexpected charges on payment method

Requested features

3 requests
  • Add a free sign-up option
  • Reduce the subscription cost
  • Improve the accuracy of fossil identification

In-app purchases

None

Decypher

No in-app purchases

3 purchases

Fossil Identifier

Subscriptions3
  • Premium Weekly$3.997 Days
  • Premium Monthly$9.991 Month
  • Premium Yearly$39.991 Year

Questions

Is Decypher free?
Decypher is free to download, with no in-app purchases.
Is Fossil Identifier free?
Fossil Identifier is free to download, with in-app purchases available.
Do Decypher or Fossil Identifier have ads?
Fossil Identifier shows ads; Decypher does not.
Which is updated more often, Decypher or Fossil Identifier?
Decypher ships an update daily, and Fossil Identifier every 4 weeks. Most recently, Decypher was updated on November 3, 2026 and Fossil Identifier on October 30, 2026.

Other comparisons