Comparison

PerchLens vs Mahjong Card Studio

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

Head to head
About

PerchLens

This app enhances bird watching by integrating camera technology with bird feeders to capture images of visiting birds. It offers enthusiasts an innovative way to observe and engage with local wildlife.

Highlights
  • Camera-enabled bird feeder
  • Captures images of visiting birds
  • Innovative nature engagement
  • High-tech bird watching
  • Feathered friends observation
Features
Read full description

PerchLens leads the way in bird watching innovation. By merging cutting-edge camera tech with classic bird feeders, it captures visiting birds, granting enthusiasts an exclusive peek into our feathered friends' world! It's a complete game-changer in our nature engagement!

About

Mahjong Card Studio

Easily design and print custom American Mahjong cards for leagues, parties, or personal events. Choose from numerous holiday and life-milestone templates, personalize them with thematic elements, and export print-ready PDFs.

Highlights
  • Design custom American Mahjong cards
  • Print-ready PDF export
  • Holiday and life-milestone templates
  • Personalize with thematic elements
  • Trifold format for US Letter
  • Create 55-hand cards
Features
Read full description

Mahjong Card Studio Design and print your own American Mahjong card — beautifully, in minutes. Mahjong Card Studio is the simplest way to create a complete 55-hand American Mahjong card and print it as a true letter-size trifold. Whether you're running a league, hosting a themed party, or commemorating a once-in-a-lifetime moment, every card you make is yours — designed by you, printed by you, played at your table. 19 Holiday Templates, Ready to Personalize Each holiday template is a fully realized 55-hand card — complete with thematic section titles, emoji accents, a tagline, and a four-digit signature anchor that replaces the calendar year, so your card never feels dated. Christmas · New Year · Valentine's Day · St. Patrick's Day · Easter · Passover · Cinco de Mayo · Mother's Day · Father's Day · Memorial Day · Independence Day · Labor Day · Halloween · Thanksgiving · Veterans Day · Hanukkah · Lunar New Year · MLK Day · Presidents' Day 12 Life-Milestone Templates for Unforgettable Occasions The same meticulous 55-hand structure, thoughtfully themed for the moments that matter most: Weddings · Milestone Anniversaries · Engagements · Bridal Showers · Bachelorette & Bachelor Parties · Baby Showers · Milestone Birthdays · Graduations · Promotions · Retirements · Housewarmings · Health & Recovery Open any template, refine it to match the guest of honor, and print enough for every player at the table. Print-Ready, Every Time Export to a polished PDF formatted for US Letter, landscape, trifold — the exact format Mahjong players have been folding for decades. Print at home, or send the file to your local print shop. What you see in the editor is precisely what arrives in your hands. Made For- -League directors crafting custom cards for tournaments and special events -Hosts planning a Mahjong-themed wedding, shower, birthday, or holiday gathering -Instructors and clubs designing tailored practice cards for students -Players who want the joy of a card built entirely their way Design it. Print it. Play it. Mahjong Card Studio turns the card you've always imagined into the card on your table. Terms of Service https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

PerchLens4 screens
Mahjong Card Studio3 screens

Verdict

The call

The clearest difference is review sentiment: Mahjong Card Studio at 100% against PerchLens's 12%. Mahjong Card Studio also leads on rating (4.3 vs 1.9) and update cadence (every 3 days vs every 3 weeks). PerchLens's advantage is in-app purchases (none vs 3) and ratings volume (341 vs 6). 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. Mahjong Card Studio sells 3 in-app purchases, starting at $1.99 per month. PerchLens asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Mahjong Card Studio holds the better App Store score, 4.3 against 1.9. That said, the two scores are not equally well evidenced: PerchLens has 341 ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 12% of PerchLens's written reviews are positive against 100% of Mahjong Card Studio's.

UpkeepUpdate frequency

PerchLens ships an update every 3 weeks, Mahjong Card Studio every 3 days. The most recent releases landed on November 8, 2026 and November 5, 2026 respectively.

Scorecard7 real differences · 3 level
PerchLens versus Mahjong Card Studio: the parameters behind the verdict, then further details
ParameterPerchLensMahjong Card Studio
PriceFreeFree
Rating1.9 (341 ratings)4.3 (6 ratings) — better
Positive reviews12.0% of reviews100.0% of reviews — better
Number of ratings341 — better6
Update frequencyEvery 3 weeksEvery 3 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFreemium
DevicesiPhone, iPodiPhone, iPad
Requires iOS12.0 — better16.6
Further details — not scored
Size201 MB86 MB
Age rating4+4+
DeveloperPOCKET INCLores Logic LLC

Customer experience

PerchLens

All ratings304 ratings
Positive17.1%
Neutral7.6%
Negative75.3%
Written reviews234 reviews
Positive12.0%
Neutral7.3%
Negative80.8%

Mahjong Card Studio

All ratings6 ratings
Positive83.3%
Neutral0.0%
Negative16.7%
Written reviews4 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

PerchLens

Reported bugs

4 issues
  • Inconsistent video recording and storage
  • Inability to connect to Wi-Fi
  • Login and account issues
  • Compatibility problems with newer OS versions

Requested features

5 requests
  • Option to turn off AI bird identification
  • Improved squirrel deterrent features
  • Ability to share videos and photos
  • Compatibility with smart home platforms
  • Better battery life management

Mahjong Card Studio

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

PerchLens

No in-app purchases

3 purchases

Mahjong Card Studio

Subscriptions2
  • Mahjong Card Studio Monthly$1.991 Month
  • Mahjong Card Studio Yearly$5.991 Year
One-time1
  • Mahjong Card Studio Print$0.99

Questions

Is PerchLens free?
PerchLens is free to download, with no in-app purchases.
Is Mahjong Card Studio free?
Mahjong Card Studio is free to download, with in-app purchases available.
Which has better reviews, PerchLens or Mahjong Card Studio?
Mahjong Card Studio is rated higher. PerchLens averages 1.9 out of 5 from 341 ratings, while Mahjong Card Studio averages 4.3 from 6 ratings.
Do PerchLens or Mahjong Card Studio have ads?
Neither PerchLens nor Mahjong Card Studio shows ads.
Which is updated more often, PerchLens or Mahjong Card Studio?
PerchLens ships an update every 3 weeks, and Mahjong Card Studio every 3 days. Most recently, PerchLens was updated on November 8, 2026 and Mahjong Card Studio on November 5, 2026.

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