Polym vs aery
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Polym
Enhance your memory and recall with audio-first lessons and active learning techniques. Explore a wide range of subjects through engaging courses, flashcards, and integrated memory training. Learn effectively anytime, anywhere with this distraction-free educational tool.
- Audio-first lessons for on-the-go learning
- Active audio learning with flashcards
- Spaced repetition and interleaving techniques
- Expansive course catalog across various subjects
- Progress tracking and due date reminders
- Distraction-free learning interface
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Polym: Remember what you learn. Polym (pronounced: poly-m) is a learning app built for the retention of foundational knowledge. Audio and text feeds deliver sets you can finish in a sitting, drawn from a catalog of essential subjects: logic, mathematics, psychology, philosophy, history, economics, and more. Embedded retrieval practice, spaced repetition, and interleaving move what you learn into long-term memory. Designed to strengthen attention with cognition tracking to keep you accountable. Some content and features require a subscription to access. What you'll immediately receive • Audio and text feeds • Active learning, spaced repetition, and interleaving • A collection of foundational knowledge, including classic book excerpts • Cognition tracking What you'll work toward • Improved retention and recall • Strengthened attention • Greater verbal fluency • Faster pattern recognition Begin with a single set. Essential for aspiring polymaths. By using this app, you agree to Apple's standard Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
aery
This app offers immersive soundscapes, binaural beats, and personalized rituals to help users sleep deeper, focus longer, and calm anxiety. It provides guided journeys to discover a personalized companion and tools for building better habits and tracking progress.
- Immersive soundscapes for sleep and focus
- Binaural beats and neural frequencies
- Personalized daily rituals and affirmations
- Guided breathing exercises
- Visual sanctuaries for relaxation
- Progress tracking and habit building
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you don't need another app that just says "stop." you need one that gives you a reason to put your phone down. aery is your screen time companion, a small creature that grows when you do real things and fades when you don't. complete quests, build streaks, earn xp, and unlock your apps only when you've earned them. no lectures. no guilt. just a simple deal: do something first, then scroll. — how it works pick your quests. walk, read, stretch, clean, cook: choose from 28+ quests across fitness, mindfulness, learning, productivity, and daily life. or set your own. earn xp and gems. every completed quest earns xp (your progress) and gems (your currency). gems unlock access to blocked apps. level up and unlock something even better. make your aery yours. level up to unlock new colors, shapes, and styles for your companion. every player's aery looks different. your creature, your way. that's what keeps you coming back. block what distracts you. add tiktok, instagram, youtube, or any app to your block list. set your own rules — choose what to block, when, and how. watch your companion grow. your aery reflects your habits. stay consistent and it evolves. customize it, level it up, and build something that's yours. build streaks. show up every day and your streak grows. miss a day and it resets. simple, effective, motivating. — why aery works other screen time apps block your phone and hope for the best. you bypass them in 10 seconds. aery works because it replaces the scroll with something better — and makes the process feel like progress, not punishment. - blocking alone doesn't build habits. quests do. - time limits feel arbitrary. earning your screen time feels fair. - generic blockers are forgettable. a companion you styled yourself is not. - guilt makes you avoid the app. a creature you care about makes you come back. — what's inside · 28+ quests across 5 categories · xp and gem economy with level progression · cosmetic unlocks — colors, shapes, and styles for your aery · companion that evolves with your habits · fully customizable app blocking · daily streak tracking with milestone rewards · shield presets for quick blocking setups · no data leaves your device — fully private — your screen time, your rules aery doesn't track what you browse. it doesn't sell your data. it doesn't lecture you about dopamine. it gives you a system that works because you built it yourself. do the quest. earn the scroll. make the aery yours. subscription required to unlock features. for more information: terms of use - https://www.eversince.io/aery/terms-of-use privacy policy- https://www.eversince.io/aery/privacy-policy
Screenshots
Verdict
The clearest difference is ads: aery at none against Polym's shown. aery also leads on update cadence (every 4 days vs every 9 days). Polym's advantage is review sentiment (70% vs 50%) and iOS requirement (16.4 vs 18.0). On price, rating, ratings volume and in-app purchases 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. Polym sells 7 in-app purchases, starting at $7.99 per month and aery sells 4 in-app purchases, starting at $9.99 per 7 days. Whichever you choose, the download price is not the number that matters.
aery holds the better App Store score, 4.8 against 4.6. Both are backed by a comparable volume of ratings — 38 and 52 respectively. Written reviews complicate that: 70% of Polym's written reviews are positive against 50% of aery's, so the app with the better star average is not the one people write more warmly about.
Polym ships an update every 9 days, aery every 4 days. The most recent releases landed on November 4, 2026 and October 31, 2026 respectively.
| Parameter | Polym | aery |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (38 ratings) | 4.8 (52 ratings) — better |
| Positive reviews | 70.0% of reviews — better | 50.0% of reviews |
| Number of ratings | 38 | 52 — better |
| Update frequency | Every 9 days | Every 4 days — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone | iPhone |
| Requires iOS | 16.4 — better | 18.0 |
| Further details — not scored | ||
| Size | 66 MB | 135 MB |
| Age rating | 4+ | 4+ |
| Developer | Polym App LLC | eversince. |
Customer experience
Polym
aery
In-app purchases
Polym
- Standard Access7 Days trial$7.991 Month
- Standard Access14 Days trial$9.991 Month
- Standard Access14 Days trial$11.991 Month
Show 4 moreShow fewer
- Standard Access7 Days trial$14.993 Months
- Standard Access14 Days trial$19.993 Months
- Standard Access14 Days trial$29.993 Months
- Standard Access14 Days trial$79.991 Year
aery
- Weekly$9.997 Days
- Monthly$14.991 Month
- Yearly3 Days trial$29.991 Year
Show 1 moreShow fewer
- Yearly3 Days trial$49.991 Year









