Comparison

Giveffect vs CallHarborUC

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

Head to head
About

Giveffect

This app helps nonprofits manage constituents, events, and volunteers. It allows for location-based contact searches and features tools for checking participants in and out, tracking hours, and validating event tickets.

Highlights
  • Constituent management
  • Event management
  • Volunteer check-in/out
  • Location-based search
  • Ticket validation (QR code/number)
  • Driver's license scanning
Features
Read full description

Giveffect is built for nonprofits. This app is designed as a Constituent Management, Events Management, and Volunteer/Participant check-in & check-out tool. Users must have an account with Giveffect to manage their nonprofit organization with this app. Simply login using your account credentials to access your organization's events, volunteers and contact database. Location based search: This app allows administrators to search for contacts in the database based on their location. With your location data, you can query your database for contact addresses within a set radius. If your location is not provided as search parameters, then the spatial query is ignored. Key features include: - Add constituents to your database. - Scan driver's license data via 2D barcode (PDF417) using the camera, or magnetic stripe. - Search constituent database by name or nearby location via GPS coordinates. - Check-in & Check-out Volunteers and Event Participants to track volunteer hours and attendance. - Validate Event tickets manually by ticket number, or automatically by scanning ticket QR codes using the device camera.

About

CallHarborUC

This app allows you to use your professional phone extension on your mobile device. Make and receive calls from anywhere, and enjoy free in-app calls with other users.

Highlights
  • Carry your extension on mobile
  • Make and receive calls on the go
  • Log in with existing credentials
  • Free in-app calls among users
  • High-quality audio
Read full description

Transform your communication with the CallHarborUC app. Seamlessly carry your extension wherever you go, enabling you to make and receive calls on the move. With just a few taps, log in using your CallHarbor credentials to instantly access your extension. Stay connected and in control of your professional communications effortlessly with CallHarborUC. With our application, you can enjoy more than just the standard VoIP features. We enable free in-app calls among application users, utilizing top-notch audio quality.

Screenshots

Giveffect3 screens
CallHarborUC4 screens

Verdict

The call

The clearest difference is rating: Giveffect at 5.0 against CallHarborUC's 3.8. Giveffect also leads on update cadence (fortnightly vs every 9 months) and device support (3 vs 1). CallHarborUC's advantage is ratings volume (8 vs 2). On price, review sentiment, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Giveffect holds the better App Store score, 5.0 against 3.8. Both are backed by a comparable volume of ratings — 2 and 8 respectively. Written reviews split almost evenly too, at 0% and 0% positive.

UpkeepUpdate frequency

Giveffect ships an update fortnightly, CallHarborUC every 9 months. The most recent releases landed on October 2, 2026 and October 1, 2026 respectively.

Scorecard5 real differences · 5 level
Giveffect versus CallHarborUC: the parameters behind the verdict, then further details
ParameterGiveffectCallHarborUC
PriceFreeFree
Rating5.0 (2 ratings) — better3.8 (8 ratings)
Positive reviews0.0% of reviews0.0% of reviews
Number of ratings28 — better
Update frequencyFortnightly — betterEvery 9 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS9.0 — better16.0
Further details — not scored
Size26 MB115 MB
Age rating4+17+
DeveloperGiveffect, Inc.Active Solutions Group, Inc.

Customer experience

Giveffect

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

CallHarborUC

All ratings8 ratings
Positive62.5%
Neutral0.0%
Negative37.5%
Written reviews2 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

Giveffect

No in-app purchases

None

CallHarborUC

No in-app purchases

Questions

Is Giveffect free?
Giveffect is free to download, with no in-app purchases.
Is CallHarborUC free?
CallHarborUC is free to download, with no in-app purchases.
Which has better reviews, Giveffect or CallHarborUC?
Giveffect is rated higher. Giveffect averages 5.0 out of 5 from 2 ratings, while CallHarborUC averages 3.8 from 8 ratings.
Do Giveffect or CallHarborUC have ads?
Neither Giveffect nor CallHarborUC shows ads.
Which is updated more often, Giveffect or CallHarborUC?
Giveffect ships an update fortnightly, and CallHarborUC every 9 months. Most recently, Giveffect was updated on October 2, 2026 and CallHarborUC on October 1, 2026.

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