KD DFU vs PTT
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
KD DFU
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A utility to do the door lock firmware upgrade
PTT
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The smart-ptt agent management platform is the software that manages users, enterprises, and orders. Users and enterprises are managed by agent. Each agent independently manages its own intercom account and enterprise
Screenshots
Verdict
The clearest difference is update cadence: KD DFU at every 2 months against PTT's every 12 months. PTT's advantage is iOS requirement (9.0 vs 12.0). 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. Neither carries in-app purchases, so what you see is what you pay.
KD DFU ships an update every 2 months, PTT every 12 months. The most recent releases landed on September 26, 2026 and September 30, 2026 respectively.
| Parameter | KD DFU | PTT |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 months — better | Every 12 months |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 12.0 | 9.0 — better |
| Further details — not scored | ||
| Size | 26 MB | 28 MB |
| Age rating | 4+ | 4+ |
| Developer | Guangzhou Kuodao Internet of Things Technology Co., Ltd. | Shenzhen Corget Technology Co.,Ltd |
In-app purchases
KD DFU
No in-app purchases
PTT
No in-app purchases
