IIJmio Coupon Switch v7.1.0
APK · 769.3 KB · version code 42 · Android 5.0+ · uploaded Mar 26, 2022
- Signature matches the Google Play version Details
The source store hasn't rated this file as safe (its rating is Unknown). Prefer a version rated Trusted. See other versions.
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Answer this to unlock the download. It keeps automated downloaders away.
Compared with the latest version
The latest version is v7.2.0, uploaded Dec 15, 2025 — about 3 years after this one.
- Size: this file is 769.3 KB; the latest is 815.5 KB (46.2 KB larger).
- Android: this version needs Android 5.0+; the latest needs Android 8.0+. Use this one if your device runs an older Android release.
- Both versions request the same permissions.
File information
- Version
- v7.1.0 (42)
- Uploaded
- Mar 26, 2022
- Size
- 769.3 KB
- Requires
- Android 5.0+ (API 21)
- CPU support
- Any (no native code)
- Screen
- Small screens and larger
- MD5
- 2cdf1f25e9bad55e142c75dc72276fb2
- Signing certificate (SHA-1)
- F5:CC:2F:10:FC:21:28:CF:DC:A0:0D:FC:84:27:47:74:7D:93:94:17
- Signed by
- OU=Network Division, O=Internet Initiative Japan Inc., L=Chiyoda-ku, ST=Tokyo, C=JP
- File name
- jp-ad-iij-couponswitch-42-61990001-2cdf1f25e9bad55e142c75dc72276fb2.apk
- Package
- jp.ad.iij.couponswitch
- Downloads (all versions)
- 500K+
- Age rating
- PEGI 3 · Everyone
What's new in v7.1.0
Support 14 digit of 020 phone number.
Permissions (1)
This version requests 1 permission, none of them sensitive.
- Full network access android.permission.INTERNET
Security & authenticity
Security rating: Unknown
Signing certificate
- Signature matches the Google Play version Checked by the source store on Mar 26, 2022.
- Certificate issued to “Internet Initiative Japan Inc.” This is the certificate of the Google Play version.
- Same certificate as the 2 other versions checked
Store checks
- Developer signature verified Mar 26, 2022
- Validated against Google Play Mar 26, 2022
- Antivirus scan result not available
- Uploaded by “appupdater” Gold tier · 117,810 followers · uploading since 2020
Scans come from the source store; the certificate comparisons are AAPKs's own, made from the files' published signatures (2 other versions compared). AAPKs doesn't scan files itself.
How to install IIJmio Coupon Switch on Android 5.0+
You'll need about 1.5 MB of free space.
- Download the APK — tap Download APK above (769.3 KB). Chrome shows “File might be harmful” for every APK file; choose Download anyway only if you trust this file.
- Open the file — tap the download notification, or open Files › Downloads and tap jp-ad-iij-couponswitch-42-61990001-2cdf1f25e9bad55e142c75dc72276fb2.apk.
- Allow the install (first time only) — Android 8 and later asks for permission the first time an app opens an APK: tap Settings in the prompt, turn on Allow from this source, then go back. Manual path: Settings › Apps › Special app access › Install unknown apps (on Samsung: Settings › Apps › ⋮ › Special access). On Android 7 and older: Settings › Security › Unknown sources.
- Check the file (optional) — the MD5 of the downloaded file should be 2cdf1f25e9bad55e142c75dc72276fb2. If it differs, the file is damaged or was changed: delete it and download again.
- Tap Install — Android asks “Do you want to install this app?”. This file has no malware rating from the source store. If Play Protect warns about it, tap Cancel. If an earlier version is installed, this one only installs as an update when it is signed with the same certificate (SHA-1 shown above).
- Open IIJmio Coupon Switch — tap Open on the install screen, or find it in your app drawer.
Common install problems
- “App not installed” — a version signed with a different certificate, or a newer version, is already installed (Android doesn't allow downgrades). Uninstall it first; back up your data, because uninstalling deletes it.
- “There was a problem parsing the package” — the file is incomplete, or your Android is too old (this version needs Android 5.0+). Download it again, or pick an older version.
- Blocked by Play Protect — Play Protect checks apps from outside the Play Store. Only continue if you trust the source.