Comparison

John's Personality Test vs Pref

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

Head to head
About

John's Personality Test

Discover your personality type with a scientifically-backed quiz. This free app offers an honest assessment without ads, tracking, or sign-ups, focusing on accuracy over engagement. It's designed to provide trustworthy results based on real user data.

Highlights
  • 25-question personality quiz
  • Learns from real user data
  • 16 personality types
  • 100% free with no ads
  • No account or sign-in required
  • No tracking or analytics
Features
Read full description

Find your personality type in 25 questions — and actually trust the result. Most personality tests rely on hand-written rules someone drew up decades ago. This one learns from real people, and understands how each of the 16 types uniquely answers each question. Designed for honesty, not engagement: • 100% free, with no ads, no upsells, no paywall, no premium tier • No account, no email, no sign-in • No tracking, no analytics, no third-party SDKs • Only your responses and an IP address are stored, used solely to keep the algorithm calibrated Almost 15 years in the making: The quiz first launched in 2012 as a side project on Reddit. Our goal is to create the most accurate personality test in the world.

About

Pref

Features
Read full description

Everyone loves being remembered. How you take your coffee. Your birthday. Allergies and dietary restrictions. What you need to sleep comfortably. Favorite foods. Pref is the place to record your real world preferences — and share them with the people and businesses who care. It's fun to add your prefs, and you can ask piña the Pref assistant to answer questions about your friends, their dependents (kids, pets, adults), and their relationships. If you have someone's number saved in your phone, and they have yours saved, you're automatically friends. A few moments Pref is built for: -A friend wondering what to bring to your birthday dinner -Remembering your buddy's dog's name -A new babysitter asking what your kid needs to fall asleep -Figuring out what drinks to get for the wedding -Taking out a date for the first time -Hosting an important sales prospect -A memory care nurse meeting your dad for the first time -Planning a dinner party menu (no cilantro!) -Organizing the team offsite for coworkers -A hotel that actually wants to get it right -A petsitter who wants all the details before you head out Plus never forget a birthday again, with customizable birthday reminders for all your friends. Privacy first: phone numbers are hashed before they touch our server, audio and photos stay on your device, and there's nothing to sell. Read the full policy at prefpref.com/privacy. Pref is free. Someday we'll make money when businesses request your prefs, or when we help you choose businesses that respect your prefs.

Screenshots

John's Personality Test4 screens
Pref4 screens

Verdict

The call

John's Personality Test and Pref are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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. Neither carries in-app purchases, so what you see is what you pay.

ScorecardNo meaningful differences
John's Personality Test versus Pref: the parameters behind the verdict, then further details
ParameterJohn's Personality TestPref
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhoneiPhone
Requires iOS17.017.0
Further details — not scored
Size1 MB9 MB
Age rating9+12+
DeveloperRed Sail Software, LLCBecker Capital Ventures LLC

In-app purchases

None

John's Personality Test

No in-app purchases

None

Pref

No in-app purchases

Questions

Is John's Personality Test free?
John's Personality Test is free to download, with no in-app purchases.
Is Pref free?
Pref is free to download, with no in-app purchases.
Do John's Personality Test or Pref have ads?
Neither John's Personality Test nor Pref shows ads.

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