A2Z Groups vs PinStamp
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
A2Z Groups
Manage your contacts and send messages or emails to groups efficiently. Organize contacts, create custom groups, and send personalized mass communications. Features include backups, birthday reminders, and contact sharing.
- Create and manage contact groups
- Send mass texts and group emails
- Backup and restore contacts
- Birthday and anniversary notifications
- Share and export contacts
- Clone contacts and groups
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A2Z is the complete contact manager! With A2Z, you can easily create, edit, and delete contacts & groups. Send mass texts and group emails. View recently created contacts. Share or print your contacts. Create backups. Get birthday notifications. And so much more: CONTACTS: • View all of your contacts organized by account or group • Easily find a contact with A2Z's powerful search tool • Select multiple contacts and perform a number of actions including text, email, share, and delete • Quickly perform a number of functions with one touch directly from the contact card GROUPS: • Create groups of contacts from any account including iCloud, Google, Exchange or Outlook • Filter contacts by one or more groups at the same time • Add & remove contacts from a particular group • Add & remove groups from a particular contact FAVORITES: • Create a list of favorites allowing you to quickly call/message/email those contacts GROUP EMAILS & MESSAGES: • Send messages to groups via iMessage, SMS, & WhatsApp • Send emails to groups via Mail App or Gmail App • Attach photos & documents, including from Dropbox • Assign the to/cc/bcc email field to each contact individually • Give your message a personal touch - Automatically refer to each contact by name COMPANIES, BIRTHDAYS, ANNIVERSARIES, MOST VIEWED, RECENTLY CREATED/MODIFIED/DELETED: • Sort your contacts by company name • View upcoming birthdays & anniversaries • View your most frequently viewed contacts • View recently created & modified contacts • View & restore your recently deleted contacts SHARE CONTACTS: • Share one or more contacts via text message, email, or various other services • Export contacts in the CSV or vCard format DELETE CONTACTS & GROUPS: • Quickly delete contacts & groups BACKUP: • Create a backup of any contact account • Restore your backup to any contact account CLONE CONTACTS & GROUPS: • Clone a contact from the contact card screen including all contact fields & groups • Clone a group so you don't have to add all of the group members manually START SCREEN: • Specify whether the app should load the contacts, groups, or favorites screen at startup SHORTCUTS: • Press & hold a contact or group to conveniently perform a number of common functions SYNC CONTACTS WITH GOOGLE: • Fully compatible with the "Contacts Sync" app WORKS WELL WITH OTHER CONTACT APPS: • Any contact changes you make with this app will be reflected in any other contact app that queries the iPhone address book (including the standard Contacts & Phone app) SUBSCRIPTIONS: • A2Z Contacts offers a "Premium" subscription which unlocks all of the premium features in the app, including unrestricted group emails and texts, unrestricted sharing of contacts, and access to future premium features. • The "Premium" subscription is priced at $0.99 USD and the subscription length is 1 year • Payment will be charged to iTunes Account at confirmation of purchase • Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period • Account will be charged for renewal within 24-hours prior to the end of the current period, at a cost of $0.99 USD • Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase • Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable • Terms of use: https://playaapps.zendesk.com/hc/en-us/articles/360003030954 • Privacy Policy: https://playaapps.zendesk.com/hc/articles/229824667
PinStamp
Capture photos with essential location and time details automatically stamped. Customize stamp styles, add notes, and generate PDF reports. Works offline and offers advanced camera features.
- Automatic GPS and timestamp stamping
- Customizable stamp styles and layouts
- Offline functionality for coordinates
- PDF photo report generation
- Add notes and job details
- Stamp gallery photos
- Advanced camera controls
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PinStamp is a GPS map camera: take a photo and it stamps the address, GPS coordinates, date and time right on it. Readable stamps, a live accuracy reading, PDF photo reports, and no ads on the camera. WHY PINSTAMP • See the stamp before you shoot, with the live GPS accuracy (for example ±4 m) • Honest labels: network or device time, "Location set manually", approximate area, and a warning when the phone reports a mock location • Works offline: the coordinates still go on, and the last known address is marked as such • No watermark on your photos and no sign-up. Your photos stay on your phone unless you share them. THE STAMP • 5 free styles: Classic, Map card, Minimal, Time XL and Travel; dark or light, any size, top or bottom • Show what you need: place, address, coordinates, date, time, accuracy, time source and a note (site, client, job number...) • Coordinates in decimal, DMS, Plus Code, UTM or MGRS; date formats, time zone, feet and miles • Attendance: mark a photo as Check-in or Check-out on the stamp; these go to their own Attendance project, by day THE CAMERA • 4:3 or 16:9, flash, torch, zoom, grid, front camera • 3 or 10 second self-timer • Wrong spot? Move the pin on the map, or search an address or coordinates • Weak GPS, location off or approximate only: the app and the stamp say so PHOTO LOG • Every stamped photo is saved to your Photos library and to the Photo log, by day • Search by address or note • Projects for each job (3 free): rename, archive or delete them (the photos stay); each remembers its stamp style • Before and after: take the "after" of an earlier photo and see both side by side • Optionally keep the unstamped original, then stamp it again with another style as a new copy • Stamp photos from your gallery with the time and place saved in each (3 at a time free). No saved location: use where you are, a point on the map (labelled "Location set manually") or the date and time only. Originals stay unchanged. • Share photos with an optional map link; choose whether the coordinates also go into the file (EXIF) PDF PHOTO REPORTS Select photos and get a PDF with each one's date, time, address, coordinates and accuracy. 2 reports free, then one more for each short video you choose to watch. Free reports carry a small "Made with PinStamp" line. WHERE AM I Copy, share or open your coordinates and address in maps. Places you saved in My Location Tracker are in Photo log > My places. ALSO INCLUDED (Settings > More tools) Device info, compass, Wi-Fi, flashlight, battery, metal detector (uses the phone's magnetic sensor) and screen light. PINSTAMP PRO • 8 more styles: Report, Branded, Compact, Grid and 4 color themes, or design your own stamp layout • Your business name and logo on the Branded stamp and on PDF reports • Up to 3 custom stamp lines, such as a job number or client • Altitude, heading, a QR code of the map link (Classic styles) and your own stamp color • Mark up photos with arrows, circles and text, saved as a new copy • Unlimited PDF reports without the PinStamp line: 1, 2 or 4 photos per page and a cover page • Unlimited gallery stamping and projects, CSV, KML, GPX and ZIP export, and no ads The camera, the 5 free styles, saving and sharing stay free. The free version shows a banner ad in the Photo log (never on the camera) and offers an optional video for an extra report. Earlier My Location Tracker purchases stay active. A NOTE ON ACCURACY Time and place as recorded by your phone. PinStamp is not a legal certification of time or place. Accuracy depends on your phone's GPS and signal. Available in 22 languages. Privacy policy: https://www.yalintech.com/legal/location/privacy Questions or ideas: support@yalintech.com
Screenshots
Verdict
The clearest difference is monetization model: PinStamp at free with in-app purchases against A2Z Groups's subscription. PinStamp also leads on review sentiment (100% vs 82%). A2Z Groups's advantage is ads (none vs shown) and update cadence (every 3 weeks vs every 6 months). On price, rating, 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. A2Z Groups sells 4 in-app purchases, starting at $0.99 per year and PinStamp sells 6 in-app purchases, starting at $4.49 per month. Whichever you choose, the download price is not the number that matters.
PinStamp holds the better App Store score, 4.8 against 4.6. That said, the two scores are not equally well evidenced: A2Z Groups has 3.9K ratings behind it against 29, so its average is the more settled of the two. Written reviews point the same way: 82% of A2Z Groups's written reviews are positive against 100% of PinStamp's.
A2Z Groups ships an update every 3 weeks, PinStamp every 6 months. The most recent releases landed on November 6, 2026 and November 7, 2026 respectively.
| Parameter | A2Z Groups | PinStamp |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (3.9K ratings) | 4.8 (29 ratings) — better |
| Positive reviews | 82.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 3.9K — better | 29 |
| Update frequency | Every 3 weeks — better | Every 6 months |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Subscription | Free with in-app purchases — better |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 17 MB | 43 MB |
| Age rating | 4+ | 4+ |
| Developer | Playa Apps | Yalintech |
Customer experience
A2Z Groups
PinStamp
Bugs and requests
A2Z Groups
Reported bugs
4 issues- Contacts being deleted unexpectedly
- Inability to save contact information
- Syncing issues with Google/Outlook contacts
- Unreliable group messaging
Requested features
5 requests- Scheduled messaging
- Improved group management
- Better integration with native Contacts app
- Map feature
- Birthdays/anniversaries tracking
PinStamp
Not enough reviews yet to summarise bugs or requests.
In-app purchases
A2Z Groups
- Premium (1 Year)2 variants$0.991 Year
- Premium (Lifetime Access)$1.99
- Make Contribution$4.99
- Larger Contribution$9.99
PinStamp
- Monthly Subscription3 Days trial$4.491 Month
- PinStamp Pro – Monthly3 Days trial$4.991 Month
- App purchase3 Days trial$7.491 Year
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- PinStamp Pro – Yearly3 Days trial$14.991 Year
- One time purchase$10.99
- PinStamp Pro – Lifetime$24.99
Questions
Is A2Z Groups free?
Is PinStamp free?
Which has better reviews, A2Z Groups or PinStamp?
Do A2Z Groups or PinStamp have ads?
Which is updated more often, A2Z Groups or PinStamp?
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