OcinGuard monitors your cellular usage in real time, alerts you before you hit your limit, and keeps roaming costs under control.
How it works
No setup required. OcinGuard reads your device's network counters directly.
Install OcinGuard from the App Store. No sign-up, no permissions beyond notification access.
Enter your monthly data allowance and billing cycle. OcinGuard does the rest automatically.
Get alerted before you hit your limit. Check your live gauges any time from the widget.
Features
Built for people who want to know exactly where their data is going.
Daily and monthly usage rings update every 60 seconds. See exactly how much you've used at a glance.
Get notified at custom thresholds before you hit your limit — not after you've already gone over.
Detects when you enter a roaming zone and warns you immediately. Per-country limits and cost estimates.
Monitor up to 6 family members' data usage from one dashboard. Set per-member limits and kids mode.
Instantly alerts you when data is flowing unusually fast — catch a runaway download before it drains your plan.
Home screen, lock screen, and Dynamic Island widgets. Your usage always visible, always up to date.
Up to 4 SIMs with individual limits, billing cycles, and roaming configs. Suggests switching when roaming.
Instantly block all cellular data with one tap when you've hit your limit. Re-enable just as fast.
30-day history, month-by-month records, and a projected month-end total based on your usage pattern.
Pricing
Start free. Upgrade when you need more.
Free
Everything you need to get started.
Pro
$9.99/year — 7-day free trial.
Pro Family
$19.99/year — 7-day free trial.
FAQ
OcinGuard reads your device's network interface counters directly — the same source iOS Settings uses. It's typically within 2–5% of your carrier's bill. Slight differences can occur due to carrier rounding, WiFi calling, and zero-rated traffic. You can calibrate from a known carrier reading at any time.
No. OcinGuard samples usage every 60 seconds using a lightweight timer — the same approach used by the iOS clock. There is no continuous background process when the app is closed; iOS background refresh handles periodic updates.
Yes. OcinGuard works with any carrier on any network (4G, 5G, LTE). It includes a built-in database of 111 carriers across 35+ countries for automatic detection and roaming zone identification.
On the free tier, all data stays on your device — nothing is sent to our servers. Pro users can optionally sync usage snapshots to our backend for the web dashboard and family monitoring. See our Privacy Policy for full details.
Yes, at any time. Manage your subscription in Settings → Apple ID → Subscriptions. You keep Pro access until the end of the paid period.
Yes. Pro users can configure up to 4 SIMs with individual limits, billing cycles, and roaming configurations. OcinGuard can suggest switching to a different SIM when you enter a roaming zone.
Download
Free to download. No account required to start.
Download on the App StoreRequires iOS 17.0 or later.