房贷计算器2021 vs 大钥匙
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
房贷计算器2021
Read full descriptionHide full description
房贷计算利器2021最新版出炉啦！ 无论公积金贷款，商业贷款，还是组合贷款，不管是等额本息还是等额本金，一个工具全搞定。 还款计划清晰排列，银行利率调整全无惧。同时也是各类专业人士的房贷计算好帮手。
大钥匙
Read full descriptionHide full description
海联大钥匙提供居家智能硬件管理，可通过APP 实现智能门锁，智能水表，智能电表等家用硬件的管理。通过APP可实现远程随时谁地操控硬件，实现人与硬件的互联互通，智慧生活体验。APP可同时支持2C与2B模式。还用海联大钥匙开启智慧未来
Screenshots
Verdict
The clearest difference is update cadence: 大钥匙 at every 5 weeks against 房贷计算器2021's every 72 months. 大钥匙 also leads on iOS requirement (9.0 vs 11.0). 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.
房贷计算器2021 ships an update every 72 months, 大钥匙 every 5 weeks. The most recent releases landed on October 26, 2026 and October 27, 2026 respectively.
| Parameter | 房贷计算器2021 | 大钥匙 |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 72 months | Every 5 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 11.0 | 9.0 — better |
| Further details — not scored | ||
| Size | 24 MB | 52 MB |
| Age rating | 4+ | 4+ |
| Developer | 立乾 董 | Unovo Intelligence Technology (Shanghai) Co., Ltd. |
In-app purchases
房贷计算器2021
No in-app purchases
大钥匙
No in-app purchases
