Comparison

Manta Watch NZ vs Study Kitty

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

Head to head
About

Manta Watch NZ

Read full description

Oceanic Manta Rays and Spinetail Devil Rays are both Globally Endangered species with many of the world's populations in serious decline. In Aotearoa NZ, we simply don’t know enough about these big ocean wanders to properly protect them and that's why we need your help! This app provides the ability to submit sightings of manta and devil rays along with location data and photos or videos of your encounter. By submitting your manta and devil ray sightings to MWNZ, you are actively contributing towards vital research that will support the long-term conservation management for these amazing animals. Every sighting, whether real time or historic, helps us build a better understanding of how manta and devil rays are using our waters, their population size, and the threats they may be exposed to. Photos and videos are how we learn about populations and individual rays, so the more manta-media that you can share the better! Manta rays make life slightly easier by having unique patterns on their heads and bellies aka ID Zones. If we can successfully identify a manta from your photos/videos and it is new to our Photo ID Database, then you get to name your manta. Through our satellite tagging work we have confirmed that both manta and devil rays migrate thousands of kilometres out of NZ waters each Autumn up into the wider SW Pacific towards Fiji, Tonga and beyond, before coming back home to NZ in Spring! As manta and devils travel out of NZ waters, they are no longer a protected species and are at the most risk. So, if you’re cruising between or around those parts and spot our flappy friends we’d love that data too. Once submitted, you’ll be able to check out your sightings on our website. Thanks so much for your support and good luck!

About

Study Kitty

This app uses a gamified timer to help you stay focused and productive. Earn coins for concentration time to upgrade a virtual cat café, unlock new cats, and track your progress. Build better habits with gentle reminders and cloud sync.

Highlights
  • Gamified focus timer
  • Cat café upgrades
  • Cat collection
  • Productivity stats
  • Gentle reminders
  • Cloud sync
Read full description

Turn Focus Time into Feline Joy - Build Your Cozy Cat Café Struggling to stay off your phone? Looking for a fun, motivating way to stay productive? Meet your new favorite focus companion: a gamified timer that rewards every minute of concentration with progress in your very own cat café. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Stay Focused, Earn Rewards The longer you focus, the more coins you earn. Spend them to upgrade your café, unlock new cats, and discover delightful surprises. Why You’ll Love This App • Gamified focus timer – Grow your café empire with each study session • Café upgrades – Add trees, tables, and décor that reflect your progress • Cat collection – Adopt cute, rare, and quirky feline friends • Productivity stats – Track your focus habits daily, weekly, and monthly • Gentle reminders – Stay on track with smart, non-intrusive nudges • Cloud sync – Your café and data stay secure across devices Build Habits That Stick Focusing doesn’t have to be boring. Whether you’re studying, working, or just trying to stay off social media, your cats are counting on you. Ready to grow your cat café one session at a time? Download now and start focusing the fun way. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Manta Watch NZ4 screens
Study Kitty4 screens

Verdict

The call

The clearest difference is in-app purchases: Manta Watch NZ at none against Study Kitty's 6. On price, update cadence, 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. Study Kitty sells 6 in-app purchases, starting at $4.99 per month. Manta Watch NZ asks for nothing beyond the download.

UpkeepUpdate frequency

Manta Watch NZ ships an update every 6 months, Study Kitty every 4 months. The most recent releases landed on October 14, 2026 and October 17, 2026 respectively.

Scorecard1 real difference · 9 level
Manta Watch NZ versus Study Kitty: the parameters behind the verdict, then further details
ParameterManta Watch NZStudy Kitty
PriceFreeFree
Rating—5.0 (3 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—3 — better
Update frequencyEvery 6 monthsEvery 4 months — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Freemium
DevicesiPhone, iPodiPhone, iPod
Requires iOS15.0 — better15.1
Further details — not scored
Size44 MB48 MB
Age rating4+4+
DeveloperManta Watch New Zealand Charitable TrustElvin Ly

In-app purchases

None

Manta Watch NZ

No in-app purchases

6 purchases

Study Kitty

Subscriptions2
  • Monthly Study Kitty Pro$4.991 Month
  • Yearly Study Kitty Pro$29.991 Year
One-time4
  • 100 Coins$0.99
  • 550 Coins$4.99
  • 1200 Coins$9.99
Show 1 more
  • 2500 Coins$19.99

Questions

Is Manta Watch NZ free?
Manta Watch NZ is free to download, with no in-app purchases.
Is Study Kitty free?
Study Kitty is free to download, with in-app purchases available.
Do Manta Watch NZ or Study Kitty have ads?
Neither Manta Watch NZ nor Study Kitty shows ads.
Which is updated more often, Manta Watch NZ or Study Kitty?
Manta Watch NZ ships an update every 6 months, and Study Kitty every 4 months. Most recently, Manta Watch NZ was updated on October 14, 2026 and Study Kitty on October 17, 2026.

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