Comparison

CooCall vs The String

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

Head to head
About

CooCall

This app allows users to take their office phone extension with them anywhere. Make and receive calls using your office system from cafes, airports, or abroad. It synchronizes with your enterprise phonebook and offers personalized ringtones.

Highlights
  • Mobile office extension
  • Inbound and outbound calls
  • QR code registration
  • Enterprise phonebook sync
  • Personalized ringtones
Features
Read full description

CooCall is a softphone APP dedicated for ZYCOO CooVox series IP phone system. By using CooCall you may bring your office extension wherever you want. No matter in a cafe, airport, and even abroad, you'll never miss any inbound calls from the office phone system. And you may make outbound phone calls using the office phone system as well. Features: Scan QR code to register extension number. Enterprise phonebook and extension list synchronization. Personalized ring tones.

About

The String

Features
Read full description

String — Leads & Conversations in One Place Manage every lead, chat, and opportunity directly from your phone — no missed messages, no lost deals. String App helps businesses and teams manage marketing leads, WhatsApp messages, and social conversations in one unified inbox. Whether you run a clinic, a car dealership, or an online store, String keeps your team connected with every customer — instantly. Key Features: Leads Management — Receive new leads from all your ad campaigns (Meta, TikTok, Snapchat, Google, and more) in real time. Unified Inbox — Manage all your customer messages from WhatsApp, Instagram, Facebook, and other channels in one place. Quick Replies — Respond instantly with pre-set templates and smart reply suggestions. Smart Notifications — Get instant alerts for new leads, unread messages, or customer replies. Team Collaboration — Assign leads to team members, track progress, and measure response time. Lead Status & Notes — Update lead stages and leave notes to keep everyone aligned. Insights & Reports — Monitor your campaigns and measure conversion results anytime. Why String? Designed for Arabic-speaking businesses across MENA. Built for clinics, car dealerships, and e-commerce teams. Fully integrated with WhatsApp Business API, Meta, and TikTok Lead Forms. Works seamlessly with your existing campaigns and CRM. With String, your marketing and sales teams can finally work together — faster, smarter, and in real time. Start automating your leads today — wherever you are.

Screenshots

CooCall4 screens
The String4 screens

Verdict

The call

The clearest difference is iOS requirement: CooCall at 13.0 against The String's 15.0. On price, update cadence, 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.

UpkeepUpdate frequency

CooCall ships an update fortnightly, The String monthly. The most recent releases landed on June 5, 2026 and September 14, 2026 respectively.

Scorecard1 real difference · 9 level
CooCall versus The String: the parameters behind the verdict, then further details
ParameterCooCallThe String
PriceFreeFree
Rating1.0 (1 ratings) — better—
Positive reviews0.0% of reviews—
Number of ratings1 — better—
Update frequencyFortnightly — betterMonthly
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPodiPhone, iPod
Requires iOS13.0 — better15.0
Further details — not scored
Size10 MB52 MB
Age rating17+4+
DeveloperZYCOO CO.,LTDThe String

In-app purchases

None

CooCall

No in-app purchases

None

The String

No in-app purchases

Questions

Is CooCall free?
CooCall is free to download, with no in-app purchases.
Is The String free?
The String is free to download, with no in-app purchases.
Do CooCall or The String have ads?
Neither CooCall nor The String shows ads.
Which is updated more often, CooCall or The String?
CooCall ships an update fortnightly, and The String monthly. Most recently, CooCall was updated on June 5, 2026 and The String on September 14, 2026.

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