Comparison

Fossil Identifier vs Well Testing Suite

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

Head to head
About

Fossil Identifier

Instantly identify fossils from a photo using advanced AI. Get detailed information on their history, age, and rarity. Build a personal collection and chat with an AI for more facts.

Highlights
  • Instant AI fossil identification from photos
  • Detailed insights on species, age, and rarity
  • AI chat for learning facts and history
  • Personal digital fossil collection log
  • Easy-to-use interface for all levels
Read full description

Fossil Identifier – Explore the Prehistoric World Instantly Uncover Earth’s ancient secrets with Fossil Identifier, your ultimate tool for identifying and learning about fossils. Using advanced AI technology, Fossil Identifier recognizes fossils from a single image in seconds and provides detailed insights into their history, age, and rarity. Whether you’re a professional paleontologist, a passionate fossil collector, or simply curious about the past, Fossil Identifier is the perfect companion for exploring the wonders of our prehistoric world. Key Features - Instant Fossil IdentificationSnap or upload a photo, and our AI will identify your fossil instantly. - Detailed Fossil InsightsGet information on species classification, geological age, rarity, formation, and more. - Chat with AI AnytimeAsk questions, learn fascinating facts, and explore the story behind every fossil. - Personal Fossil CollectionSave your discoveries in your own digital fossil log. Why Fossil Identifier? * Accurate AI-powered results * Easy-to-use interface for beginners and experts alike * Expansive fossil reference database * Educational and fun for all ages Subscription InformationSubscription automatically renews unless auto-renew is turned off at least 24 hours before the current period ends. Payment is charged to your iTunes account at purchase confirmation. Manage your subscription and turn off auto-renewal in your Account Settings. Per Apple policy, cancellation during the active subscription period is not allowed. Refunds will not be issued for unused portions of the term. Terms of Use: https://reku-indie.notion.site/Terms-of-Service-2508c096503c8055a2e4d1eab8332746 Privacy Policy: https://reku-indie.notion.site/Privacy-Policy-2508c096503c80cc9026f41b78ad0b83 Support Email: support@reku.dev

About

Well Testing Suite

Features
Read full description

H2Oil Well Testing Suite is a comprehensive engineering calculator app designed for well test supervisors, field engineers, and operations teams working in oil and gas. Every calculation runs entirely on your device - no internet connection, no cloud, no subscriptions. Your data never leaves your phone. CALCULATORS INCLUDED Well Testing - AGA-3 Orifice Gas Metering (Reader-Harris/Gallagher, ISO 5167-2 / API MPMS 14.3.1) - Dual Choke Sizing (Thornhill-Craver / Economides, critical and subcritical) - Choke Flow Rates (gas, oil, multiphase) - Separator Retention Time (two and three-phase) - Bottoms Up Time / kill sheet calculations - Solution GOR (Standing 1947) - Oil and Gas Rate (surface and reservoir) - MCF and Shrinkage Flow Assurance - Well Test Simulator: full flow path from Wellhead to SSV, Choke, Heater, Separator, Flare, Surge Tank and Atmospheric Tank. Live pressure, temperature and velocity at every node. API RP 14E erosional velocity and hydrate risk at each segment. Flare and Radiation - API 521 Flare Radiation Analysis - Interactive 3D Flare Model with touch pan and pinch-to-zoom - Radiation exclusion zones mapped to API 521 Table 5 thresholds - 2D Radiation Contour Map Reservoir Engineering - Decline Curve Analysis: Arps, Duong, Stretched Exponential with P10/P50/P90 EUR Safety - PRV Sizing (API 520 Part I) REPORTING Every calculator exports a professional PDF report including your company logo, client logo, well and field details, engineer name, and full results. Reports save directly to the Files app via the iOS share sheet. PNG and CSV exports also available. DESIGNED FOR FIELD USE - Fully offline - no Wi-Fi or cell signal required on location - Dark theme optimised for outdoor readability - Large touch targets and haptic feedback - All data stored locally with iCloud-eligible backup WHO IS IT FOR Well test supervisors, petroleum engineers, production engineers, drilling engineers, HSE engineers, and operations personnel who need fast, reliable engineering calculations on location without a laptop. Developed by H2Oil Engineering - well testing and engineering services. Contact: software@h2oil.co.uk

Screenshots

Fossil Identifier4 screens
Well Testing Suite4 screens

Verdict

The call

The clearest difference is in-app purchases: Well Testing Suite at none against Fossil Identifier's 3. Well Testing Suite also leads on device support (3 vs 1) and iOS requirement (15.0 vs 17.0). Fossil Identifier's advantage is update cadence (every 3 days vs every 5 days). 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. Fossil Identifier sells 3 in-app purchases, starting at $4.99 per 7 days. Well Testing Suite asks for nothing beyond the download.

UpkeepUpdate frequency

Fossil Identifier ships an update every 3 days, Well Testing Suite every 5 days. The most recent releases landed on October 30, 2026 and November 5, 2026 respectively.

Scorecard4 real differences · 5 level
Fossil Identifier versus Well Testing Suite: the parameters behind the verdict, then further details
ParameterFossil IdentifierWell Testing Suite
PriceFreeFree
Rating4.9 (11 ratings) — better—
Number of ratings11 — better—
Update frequencyEvery 3 days — betterEvery 5 days
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS17.015.0 — better
Further details — not scored
Size40 MB12 MB
Age rating4+4+
DeveloperRamkumar VellaisamyH2Oil Limited

In-app purchases

3 purchases

Fossil Identifier

Subscriptions2
  • Fossil Identifier Weekly$4.997 Days
  • Fossil Identifier Yearly$24.991 Year
One-time1
  • Lifetime$199.99
None

Well Testing Suite

No in-app purchases

Questions

Is Fossil Identifier free?
Fossil Identifier is free to download, with in-app purchases available.
Is Well Testing Suite free?
Well Testing Suite is free to download, with no in-app purchases.
Do Fossil Identifier or Well Testing Suite have ads?
Neither Fossil Identifier nor Well Testing Suite shows ads.
Which is updated more often, Fossil Identifier or Well Testing Suite?
Fossil Identifier ships an update every 3 days, and Well Testing Suite every 5 days. Most recently, Fossil Identifier was updated on October 30, 2026 and Well Testing Suite on November 5, 2026.

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