Comparison

Little Grey Book vs PetsPro

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

Head to head
About

Little Grey Book

Enhance your Agatha Christie reading experience with a companion app. Track your progress, take notes with text scanning, and test your detective skills with a "Whodunnit Challenge." Explore the complete novel collection and personalize your reading journey.

Highlights
  • Whodunnit Challenge
  • Text scanning note-taking
  • Home screen widgets
  • Complete novel collection
  • Monthly read notifications
  • Personalization options
  • Book filtering by status
Features
Read full description

Discover the Ultimate Companion for Agatha Christie Enthusiasts! Embark on a thrilling literary adventure with Little Grey Book, the ultimate companion app for fans of Agatha Christie. Whether you're a seasoned sleuth or a newcomer to her captivating mysteries, this app is designed to enhance your reading experience like never before. Key Features: App special - Whodunit Challenge: Unleash your inner detective! As you read, select who you think the culprit is. Once you finish the book, see if you cracked the case. Can you match wits with Agatha Christie herself? Note-Taking Made Easy: Capture your thoughts, theories, favorite quotes, and memorable moments as you read. Use the new text scanning feature to quickly add notes directly from the page. The user-friendly note-taking feature lets you document your detective journey with ease. Handy Widgets: See your latest notes and keep track of your current read with convenient home screen widgets. Complete Novel Collection: Explore Agatha Christie's complete collection of novels, featuring their original covers for an authentic experience. Read Christie Notifications: Enjoy timely alerts for every new Read Christie theme and official monthly read. Personalization: Switch between UK and US book titles or even set your custom title. Choose from the uniquely crafted book icons or add one you prefer. Book Filters: Effortlessly organize your reading list. Filter books by status – unread, in progress, or completed – and maintain a clear overview of your journey through Christie's works. Why Little Grey Book? Little Grey Book is not just an app; it's a gateway into the world of intrigue and suspense. Dive deeper into each story, keep track of your progress, and challenge yourself to solve the mysteries alongside the Queen of Crime. Download Little Grey Book now and turn every reading session into an exciting detective adventure! Special thanks to friend of the app Johanna Draper Carlson for tracking down misidentified villains. ========================================================================== Icon attribution - Question icons created by Freepik - Flaticon (https://www.flaticon.com/free-icons/question)

About

PetsPro

Organize all your pet's health information, including vaccinations, medications, and vet records, in one place. Receive smart reminders and access essential details quickly for any situation.

Highlights
  • All-in-one pet profiles (up to 25 pets)
  • Smart health tracking and reminders
  • Organized medical records with document attachments
  • Vet-ready information sharing
  • Customizable notifications
  • Quick-access star button for essential info
  • Secure iCloud backup and local export
Features
Read full description

PetsPro – Your Complete Pet Health Organizer PetsPro transforms pet care into a stress-free, beautifully organized experience. Say goodbye to scattered paperwork and forgotten due dates—manage everything from vaccinations to medications and preventive treatments in one smart, intuitive hub. Whether you have one furry friend or a whole pack, PetsPro adapts to each pet’s unique needs with personalized schedules, reminders, and records you can access anytime. A one-time payment means a single purchase for a product or service, with no recurring billing or subscription involved. Why You’ll Love PetsPro All-in-One Pet Profiles – Store up to 25 pets with photos, breed, age, weight, microchip info, certifications, and notes—all at your fingertips. Smart Health Tracking – Stay ahead on vaccinations, medications, and preventive treatments with automatic reminders, visual alerts, and fully customizable schedules. Organized Medical Records – Attach and preview photos, PDFs, and vet documents for each entry, all neatly categorized and searchable. Vet-Ready Info – Keep contact details, care instructions, and medical history in one place for quick sharing with your veterinarian. Powerful Notifications – Choose exactly how and when you’re reminded—mute all, filter by type, or edit reminders on the fly. Quick-Access Star Button – Instantly pull up essential info like certification proof or medical records—perfect for: * Service animal handlers needing fast certification verification * ESA owners dealing with housing or travel requirements * Multi-caregiver households sharing pet details * Emergency situations requiring rapid access to medical info Beautiful, Adaptive Interface – Enjoy a smooth, modern design with light/dark themes, color-coded categories, and layouts optimized for iPhone, iPad, and Mac. Secure & Synced – iCloud backup, local export/import, and privacy-first file handling keep your pet data safe and available across devices. Always Ready for Life’s Pet Moments.

Screenshots

Little Grey Book4 screens
PetsPro4 screens

Verdict

The call

The clearest difference is rating: PetsPro at 5.0 against Little Grey Book's 4.5. PetsPro also leads on update cadence (every 2 weeks vs every 3 months). Little Grey Book's advantage is in-app purchases (none vs 1). On price, ratings volume, ads and monetization model 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. PetsPro sells 1 one-off in-app purchase. Little Grey Book asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

PetsPro holds the better App Store score, 5.0 against 4.5. Both are backed by a comparable volume of ratings — 4 and 2 respectively.

UpkeepUpdate frequency

Little Grey Book ships an update every 3 months, PetsPro every 2 weeks. The most recent releases landed on November 4, 2026 and November 5, 2026 respectively.

Scorecard3 real differences · 7 level
Little Grey Book versus PetsPro: the parameters behind the verdict, then further details
ParameterLittle Grey BookPetsPro
PriceFreeFree
Rating4.5 (4 ratings)5.0 (2 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings4 — better2
Update frequencyEvery 3 monthsEvery 2 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFreeFree
DevicesiPhoneiPhone, iPad — better
Requires iOS17.0 — better18.5
Further details — not scored
Size13 MB21 MB
Age rating9+17+
Developerniv ben-porathAPPLOAD LLC (NJ)

Customer experience

Little Grey Book

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

PetsPro

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Little Grey Book

No in-app purchases

1 purchases

PetsPro

One-time1
  • English$1.99

Questions

Is Little Grey Book free?
Little Grey Book is free to download, with no in-app purchases.
Is PetsPro free?
PetsPro is free to download, with in-app purchases available.
Which has better reviews, Little Grey Book or PetsPro?
PetsPro is rated higher. Little Grey Book averages 4.5 out of 5 from 4 ratings, while PetsPro averages 5.0 from 2 ratings.
Do Little Grey Book or PetsPro have ads?
Neither Little Grey Book nor PetsPro shows ads.
Which is updated more often, Little Grey Book or PetsPro?
Little Grey Book ships an update every 3 months, and PetsPro every 2 weeks. Most recently, Little Grey Book was updated on November 4, 2026 and PetsPro on November 5, 2026.

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