BGI vs PrincipleX
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
BGI
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BGI-EAM是一款设备管理系统为了高效管理设备平台，精准有效的帮助企业人员作业
PrincipleX
Capture, reflect on, and grow with your personal principles. This app helps you organize your guiding beliefs and build the habit of living by them through daily reminders and journaling.
- Create and organize personal principles
- Manage principles with folders and tags
- Daily principle practice reminders
- Reflective journaling for personal growth
- Pin important principles for daily focus
- iCloud sync across devices
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Keep useful ideas from getting lost in your saved notes. Collect your own principles, reading excerpts and life lessons, then return to them with reminders and reflection. SAVE WHAT YOU WANT TO REMEMBER Write down a personal principle, a quote or a lesson from experience. Add its source and the context behind it. Build a personal library of ideas worth revisiting. ORGANIZE YOUR COLLECTION Use folders, tags and sources to bring structure to thoughts from work, reading and everyday life. SEE YOUR IDEAS AGAIN Choose daily reminders, pin a principle you want to keep in mind, or revisit it in a Home Screen widget. Set a rhythm that works for you. MAKE THE MEANING YOUR OWN Add reflections to each principle. When was it useful? What do you understand differently now? Keep the idea and your experience together. DISCOVER, SHARE AND SYNC Explore ideas to add to your library, turn a principle into a shareable image, and use iCloud sync across your own compatible devices. START FREE. UNLOCK ONCE. Save up to 20 principles for free. A one-time lifetime purchase removes the limit on adding principles, with no subscription. Signature Color and purchases to support the developer are separate, optional items and are not included in the lifetime unlock. Local prices appear in the app. Use Restore Purchases to check existing access. OPTIONAL SIRI ACCESS On supported systems running iOS 27 or later, you can allow Siri to find, read or open saved principles. Access to reflections is controlled separately. Availability depends on your device, language, region and system settings. Privacy policy: https://xzwings.com/xzwings/principlex.html Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: BGI at none against PrincipleX's 5. BGI also leads on iOS requirement (9.0 vs 18.0). PrincipleX's advantage is update cadence (every 3 weeks vs every 5 months). On price, ads 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. PrincipleX sells 5 in-app purchases, starting at $2.99 per month. BGI asks for nothing beyond the download.
BGI ships an update every 5 months, PrincipleX every 3 weeks. The most recent releases landed on October 12, 2026 and October 4, 2026 respectively.
| Parameter | BGI | PrincipleX |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (2 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 2 — better |
| Update frequency | Every 5 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Paid |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 9.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 46 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | 武汉欣诚择科技有限公司 | 旭 夏 |
In-app purchases
BGI
No in-app purchases
PrincipleX
- Monthly Plan$2.991 Month
- Annual Plan$14.991 Year
- A Coffee$1.00
- Signature Color$3.00
- Lifetime Access$9.99
