Fast Energy ! vs Introvert Diary
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Fast Energy !
Rent a portable power bank from stations worldwide to charge your devices on the go. Locate stations on a map, scan a QR code to rent, and return it at any station globally. Earn bonuses and benefit from a loyalty program.
- Find rental stations on map
- Get directions to stations
- Scan QR code to rent
- Bonuses and loyalty program
- Return power bank anywhere
Read full descriptionHide full description
Fast Energy - international power bank sharing! Using Fast Energy App: 1. Find rental stations on the map 2. Get directions to the stations 3. Scan the QR code on the station and rent a power bank 4. Get bonuses and use the loyalty program 5. Return powerbank anywhere in the world Our website: www.fastenergy.world
Introvert Diary
Read full descriptionHide full description
We’re used to collecting memories. Saving texts, photos, thoughts — as if we’re afraid to lose something. But the truth is, not everything is meant to be carried with us This app is about something else Here, you can make only one note per day. One chance to be honest with yourself. Write about your mistake. About the moment you got it wrong. About the word you shouldn’t have said. About the decision you wish you could take back. This is not a place where you try to look better than you are. This is a place where you admit — and let go In 24 hours, your note disappears. There’s no history to return to. There’s no feed reminding you who you were yesterday. Only you — as you are today. Because sometimes, to move forward, you have to stop carrying yesterday with you. This isn’t about forgetting. It’s about the freedom to start again. Every day
Screenshots
Verdict
The clearest difference is price: Fast Energy ! at Free against Introvert Diary's $0.99. Fast Energy ! also leads on iOS requirement (13.0 vs 18.0). Introvert Diary's advantage is ads (none vs shown) and update cadence (every 4 days vs every 5 weeks). On 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
Fast Energy ! is free to download; Introvert Diary costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Fast Energy ! ships an update every 5 weeks, Introvert Diary every 4 days. The most recent releases landed on July 3, 2026 and September 15, 2026 respectively.
| Parameter | Fast Energy ! | Introvert Diary |
|---|---|---|
| Price | Free — better | $0.99 |
| Rating | 4.4 (12 ratings) — better | — |
| Positive reviews | 76.3% of reviews | — |
| Number of ratings | 12 — better | — |
| Update frequency | Every 5 weeks | Every 4 days — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | — |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 13.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 91 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | CHAINA TEKHNOLODZHYS, TOV | Igor Konoval |
Bugs and requests
Fast Energy !
Reported bugs
8 issues- SMS confirmation not received
- App does not work for registration
- Submit button not working
- Cannot link some bank cards
- Unable to make payment through Apple Pay
Show 3 moreShow fewer
- Power bank connection issues
- Cannot find power bank in app after unblocking
- App deducts money without usage
Requested features
2 requests- Add Apple Pay support
- Implement wireless chargers
Introvert Diary
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Fast Energy !
No in-app purchases
Introvert Diary
No in-app purchases
