D vs flashinfo
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
D
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"Connect your scope and quickly set up various parameters through your phone. Detailed features are as follows: 1. Set parameters for your firearm, ammunition, distance, elevation angle, environment, etc. 2. Enter the ballistics table to quickly complete the scope setup. 3. Device firmware OTA (Over-The-Air) upgrade. 4. Firearm management, unit settings, distance calculation, unit conversion, etc."
flashinfo
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Flashinfo（闪存助手）提供了闪存芯片规格、性能表现一站式查询平台，同时用户也可在平台分享DIY技术经验 查闪存-查询闪存芯片/颗粒的规格，性能数据（如有），闪存id，可能支持的usb主控 查速度-方便快捷的查询你想要查询的闪存速度，方便diy参考 查量产工具-闪存配合不同主控，可在app内方便找到对应量产工具 查命名规则-查询闪存的命名规则，方便确认闪存参数 沟通交流-如遇到diy困难，可以在app内发帖求助
Screenshots
Verdict
The clearest difference is in-app purchases: D at none against flashinfo's 5. D also leads on ads (none vs shown). flashinfo's advantage is update cadence (every 10 days vs every 6 weeks). On price, device support and iOS requirement 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. flashinfo sells 5 one-off in-app purchases. D asks for nothing beyond the download.
D ships an update every 6 weeks, flashinfo every 10 days. The most recent releases landed on September 18, 2026 and September 11, 2026 respectively.
| Parameter | D | flashinfo |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 6 weeks | Every 10 days — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 12.0 — better | 13 |
| Further details — not scored | ||
| Size | 32 MB | 84 MB |
| Age rating | 17+ | 17+ |
| Developer | Shenzhen DiscoveryOpt Technology Co., Ltd. | 中山凌闪科技有限责任公司 |
In-app purchases
D
No in-app purchases
flashinfo
- flashinfo-vip15$0.99
- flashinfo_cn_vip30$2.99
- flashinfo_cn_vip60$3.99
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- flashinfo-vip180$11.99
- flashinfo-vip360$19.99
