Prepair vs Catalyst
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Prepair
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Prepair is a Live interview coach. You talk, an AI interviewer listens, follows up, pushes back, and afterwards tells you exactly what to fix. Most interview prep is reading. Prepair is speaking. Pick who is interviewing you and for which company, then have the conversation out loud, the way it will actually happen. LIVE INTERVIEWS A real spoken interview with an AI interviewer who reacts to what you say. It asks follow-ups, digs into vague answers, and raises the bar when you are strong. Choose the interviewer's style, from warm hiring manager to no-nonsense tech lead, and the company you are targeting. RAPID FIRE One question that could come up in your interview. Answer out loud in about a minute, get a score and one note on what to change. Save the answers worth keeping and build your own bank. DEBRIEFS After every Live interview: what landed, what did not, and what to say next time. Concrete lines, not generic advice. BUILT AROUND YOUR APPLICATIONS Add the roles you are going for and Prepair interviews you for that role, that company, that level. Keep applications, interviews and offers in one place. ALSO INSIDE - Progress across all your sessions - Practice in English, German, French, Spanish, Italian or Portuguese FREE AND PRO Try one Live interview for free and answer five rapid-fire questions a day. Prepair Pro includes 150 Live minutes a week and unlimited rapid fire, billed weekly or yearly. Need more Live time? Add a minute pack any time; purchased minutes never expire. Cancel anytime. PRIVATE Your sessions stay yours. We never share them with employers. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Subscription terms: https://237lr.github.io/prepair-legal/subscription-terms.html
Catalyst
This app uses financial consequences to help users achieve their goals. Users commit money to a 30-day cycle, earning it back with a bonus for completion or losing it if they fail. Mastermind groups provide social accountability.
- Financial commitment for goals
- Daily reflection tracking
- 30-day goal cycles
- Mastermind accountability groups
- Consequence-based motivation
- Goal progress feed
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Catalyst is a social accountability platform for people who are serious about their goals. No confetti. No badges for showing up. A system built on the one thing that actually changes behavior: consequences. HOW IT WORKS Set a goal that matters. Catalyst breaks it into daily tasks. Then you prove your execution every day with a Daily Reflection: what you did, what you didn't, and what happens tomorrow. Your reflections become your track record. THE CYCLE When you're ready to make it real, start a 30-day Cycle: - Commit a Participation Fee — from $50 to $500. It's non-refundable. - Submit a Daily Reflection every day for 30 days. You get two lives — miss two days and the Cycle fails. - Complete all 30 days and you earn every dollar back as a Completion Bonus. - Quit or fail, and the money is gone. The only way to see that money again is to earn it. That's the point. THE MASTERMIND Every Cycle places you in a mastermind group of up to 10 people at your commitment level, in it at the same time as you. They see your reflections. They notice when you go quiet. Accountability you can't mute. THE FEED No influencers. No motivational wallpaper. A feed of real people doing real work, one day at a time — and posting proof. WHO IT'S FOR People with money on the line behave differently. If you need a gentle nudge, this isn't your app. If you're done negotiating with yourself — welcome. SUBSCRIPTION Catalyst requires an auto-renewing subscription: $49.99/month or $14.99/week. Payment is charged to your account at confirmation of purchase. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. You can manage or cancel your subscription in your account settings after purchase. Terms of Service: https://catalyst.life/docs/terms_and_conditions.html Privacy Policy: https://catalyst.life/docs/privacy_policy.html Community Guidelines: https://catalyst.life/docs/community_guidelines.html Cycle Agreement: https://catalyst.life/docs/cycle_agreement.html Support: support@catalyst.life
Screenshots
Verdict
The clearest difference is update cadence: Catalyst at fortnightly against Prepair's every 5 weeks. Catalyst also leads on iOS requirement (15.1 vs 17). On price, ads, in-app purchases 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
Both are free to download. Prepair sells 3 in-app purchases, starting at $9.99 per 7 days and Catalyst sells 2 in-app purchases, starting at $14.99 per 7 days. Whichever you choose, the download price is not the number that matters.
Prepair ships an update every 5 weeks, Catalyst fortnightly. The most recent releases landed on October 15, 2026 and October 4, 2026 respectively.
| Parameter | Prepair | Catalyst |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 5 weeks | Fortnightly — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | — | Subscription |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 17 | 15.1 — better |
| Further details — not scored | ||
| Size | 38 MB | 97 MB |
| Age rating | 4+ | 12+ |
| Developer | Karol Jaworski | BlackShift LLC |
In-app purchases
Prepair
- Prepair Pro Weekly$9.997 Days
- Prepair Pro Annual$79.991 Year
- Prepair Pro Annual Promo1 Year trial$79.991 Year
Catalyst
- Catalyst Weekly$14.997 Days
- Catalyst7 Days trial$49.991 Month









