Comparison

DevPro Light vs JiaClock

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

DevPro Light

Features
Read full description

DevPro – your personal device protection and power-nap alarm. Whether you’re on the train, at the library, in a café, or at the office: Set your iPhone down, activate DevPro—and relax. The highly sensitive motion sensor monitors your device and immediately triggers a loud alarm as soon as someone touches or takes it away. This lets you take a nap in public without losing sight of your device. Here’s why users love DevPro: • Motion Alarm – Responds reliably to any movement. You set the sensitivity yourself. • Power Nap Timer – Ready-made presets for power naps, afternoon naps, and restorative sleep. Wakes you up after your nap. • Loud siren – Scares off potential thieves and alerts you immediately. • Custom alarm sounds – Choose from the DevPro library, record your own sounds, or use your music. • Presets – Save your favorite settings and activate protection with a single tap. • Widget – Activate the alarm in a flash from the home screen. Get started for free – Pro without a subscription. DevPro is free. Unlock all premium features with a one-time payment – no subscription, no hidden costs. Protect your device. Sleep soundly. Download DevPro today.

About

JiaClock

Features
Read full description

JiaClock is an aesthetic clock app designed to be beautiful, practical, and distraction-free. Make time more than just numbers in the corner of the screen. Turn it into part of your desk, bedside, and moments of focus. 【Perfect For】 Focus Sessions · Bedside Display · Home Office · Home Screen Decoration 【Main Features】 • Digital Clock — Large immersive display, perfect for focused work and bedside use • Flip Clock — Classic flip-card design blending vintage and modern aesthetics • Transparent Clock — Overlay the clock on a live camera view with a glassmorphism interface. All camera content is previewed locally only and is never recorded or uploaded • Hourglass Clock — Watch flowing sand record the passage of your day • World Clock — Somewhere in the world, another sunrise or sunset is happening right now • Couple Clock — Share the same moment with someone special, view each other's local time, and keep memories of your shared moments 【Widgets】 • Small, Medium, and Large widget sizes • Sync with in-app settings • One-tap home screen customization • Minute-based updates for lower distraction and better battery life 【Personalization】 • Multiple beautiful themes • Flexible combinations of 12/24-hour format, seconds, date, and weekday display • Custom slogans to create your own sense of time and ritual 【Languages】 English, Simplified Chinese, Traditional Chinese, Japanese, Korean 【Pro Features】 • Use your own photos as Digital Clock backgrounds • Use your own photos as Flip Clock backgrounds • Automatically unlock future premium clock styles JiaClock. Quiet focus, right now. 使用条款(Terms of Use): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ 隐私政策(Privacy Policy): http://www.jdarray.com/privacy/privacy.html

Screenshots

DevPro Light4 screens
JiaClock4 screens

Verdict

The call

The clearest difference is update cadence: JiaClock at every 4 days against DevPro Light's every 29 months. DevPro Light's advantage is iOS requirement (15.0 vs 17.0). 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. DevPro Light sells 1 one-off in-app purchase and JiaClock sells 3 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

DevPro Light ships an update every 29 months, JiaClock every 4 days. The most recent releases landed on September 22, 2026 and September 13, 2026 respectively.

Scorecard2 real differences · 4 level
DevPro Light versus JiaClock: the parameters behind the verdict, then further details
ParameterDevPro LightJiaClock
PriceFreeFree
Update frequencyEvery 29 monthsEvery 4 days — better
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better17.0
Further details — not scored
Size10 MB30 MB
Age rating4+4+
DeveloperIIC Innovative International Consulting GmbH & Co. KGBeijing Boshujia Technology Co., Ltd

In-app purchases

1 purchases

DevPro Light

One-time1
  • DevPro – Pro Version | Unlock Pro$1.99
3 purchases

JiaClock

Subscriptions2
  • Xiaojia Clock Pro Monthly$0.991 Month
  • Xiaojia Clock Pro Yearly$0.991 Year
One-time1
  • Xiaojia Clock Pro Lifetime$1.99

Questions

Is DevPro Light free?
DevPro Light is free to download, with in-app purchases available.
Is JiaClock free?
JiaClock is free to download, with in-app purchases available.
Do DevPro Light or JiaClock have ads?
Neither DevPro Light nor JiaClock shows ads.
Which is updated more often, DevPro Light or JiaClock?
DevPro Light ships an update every 29 months, and JiaClock every 4 days. Most recently, DevPro Light was updated on September 22, 2026 and JiaClock on September 13, 2026.

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