Comparison

YESPER vs Loupewise

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

Head to head
About

YESPER

Features
Read full description

YESPER is a simple, fast and convenient APP that provides operating status data of emergency power equipment. You can check the temperature, power, voltage and other detailed information of the equipment, monitor the status of the equipment in real time, and help you better understand the usage of the equipment and arrange charging reasonably. Or use time. - Connect the device's Bluetooth through YESPER and obtain device-related information. - Scan the QR code on the device to obtain device-related information, which is more convenient and faster.

About

Loupewise

Identify gemstones using optical and physical properties like a professional. Features detailed guidance for instrument testing and collection management. Includes a database of 119 gems, from common to rare.

Highlights
  • Systematic gemstone identification
  • Optical and physical property analysis
  • Instrument test guidance
  • Origin & treatment testing (Pro)
  • Collection management
  • Database of 119 gems
Features
Read full description

Loupewise (formerly GemID) is a complete toolkit for gemstone identification and gemology study. Enter your instrument readings and it narrows the candidates; catalog your stones; generate examination reports; and prepare for your diploma exams — one app across your whole path, from first flashcard to first client report. Loupewise is an educational reference tool for gemological observation. It is not a substitute for professional laboratory testing or a certified gemologist's opinion. IDENTIFY STONES FROM YOUR OBSERVATIONS There is no camera step and no image recognition. You take the readings; the app does the elimination, and shows you which reading ruled each candidate out. Loupewise comes to the workbench with you. Enter your refractometer, hydrostatic scale, UV lamp, polariscope, and loupe readings, and the app cross-references them against 130+ gem species and varieties — returning only the candidates genuinely consistent with your data, with the full elimination path shown. Read RI 1.544 and SG 2.65? Loupewise shows that's consistent with quartz, and the one test that narrows it further. The logic is transparent; the reasoning stays yours. NATURAL VS SYNTHETIC & TREATMENT TESTING A two-phase origin workflow: enter inclusions, growth structures, fluorescence, and spectroscopy observations, and Loupewise walks the differential for natural vs. synthetic and heated vs. unheated. Treatment coverage includes heat, diffusion, glass-filling, fracture-filling, and coating. TRACK YOUR COLLECTION Save each identification with its readings and elimination trail. Build a catalog of your stones you can search and revisit. EXAMINATION REPORTS Turn a saved identification into a clean, shareable examination report with your observations, the candidate reasoning, and your notes — for your records or your clients. A MAINTAINED REFERENCE DATABASE 130+ gem species and varieties across every major family — corundum, beryl, chrysoberyl, garnet species, tourmaline, quartz, feldspar, opal, jadeite, nephrite, spinel, topaz, peridot, zircon, tanzanite, and more — with refractive index, specific gravity, optic character, pleochroism, fluorescence, and the diagnostics that separate look-alikes. Where the exam bodies publish different reference values, Loupewise shows both, tagged to the exam that grades you. PRACTICE EXAMS FOR GEMOLOGY STUDENTS Preparing for a diploma? Loupewise includes practice exams built for the GIA 20-stone, Gem-A FGA, and FEEG European Gemmologist exams. Identify unknown stones under exam conditions, and a readiness score tracks how prepared you are across the property categories examiners test. DRILL WITH SPACED REPETITION Build property recall between sessions. 23 question types across refractive index, specific gravity, optic character, pleochroism, fluorescence, natural vs. synthetic indicators, treatment detection, and key differentiators. Filter by family, color, instrument, or confusion pairs. Spaced-repetition scheduling surfaces the cards you're weakest on. 15 LANGUAGES Available in 15 languages. 7-DAY PRO TRIAL — NO CARD REQUIRED Every account starts with a full 7-day Pro trial. After it, continue free with daily drills, full instrument input, and the full named candidate list for every identification. Hobbyist adds unlimited drills and your saved collection; Pro adds examination reports and the full exam simulators. WHO USES LOUPEWISE • Collectors and enthusiasts identifying and cataloging their stones • Gemology students preparing for GIA, Gem-A, and FEEG exams • Working gemologists and appraisers at the bench Loupewise is an independent tool. It is not affiliated with, endorsed by, or sponsored by GIA, Gem-A, or FEEG. Always verify important identifications with an accredited gemological laboratory. ---

Screenshots

YESPER3 screens
Loupewise4 screens

Verdict

The call

The clearest difference is in-app purchases: YESPER at none against Loupewise's 6. YESPER also leads on iOS requirement (12.0 vs 15.0). Loupewise's advantage is update cadence (weekly vs fortnightly). 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. Loupewise sells 6 in-app purchases, starting at $6.99 per month. YESPER asks for nothing beyond the download.

UpkeepUpdate frequency

YESPER ships an update fortnightly, Loupewise weekly. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

Scorecard3 real differences · 6 level
YESPER versus Loupewise: the parameters behind the verdict, then further details
ParameterYESPERLoupewise
PriceFreeFree
Rating—5.0 (2 ratings) — better
Number of ratings—2 — better
Update frequencyFortnightlyWeekly — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS12.0 — better15.0
Further details — not scored
Size35 MB77 MB
Age rating4+4+
DeveloperShenzhen Carku Technology Co., Ltd.GemID Labs

In-app purchases

None

YESPER

No in-app purchases

6 purchases

Loupewise

Subscriptions6
  • Hobbyist Monthly$6.991 Month
  • Pro Monthly$19.991 Month
  • Hobbyist Annual$49.991 Year
Show 3 more
  • GemID Team Pro (Monthly)$49.991 Month
  • Pro Annual$149.991 Year
  • GemID Team Pro (Annual)$399.991 Year

Questions

Is YESPER free?
YESPER is free to download, with no in-app purchases.
Is Loupewise free?
Loupewise is free to download, with in-app purchases available.
Do YESPER or Loupewise have ads?
Neither YESPER nor Loupewise shows ads.
Which is updated more often, YESPER or Loupewise?
YESPER ships an update fortnightly, and Loupewise weekly. Most recently, YESPER was updated on October 30, 2026 and Loupewise on October 31, 2026.

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