# String — Modern Phone Inbox — Superpowered texting & calling > Business SMS and voice platform for enhanced customer engagement and organized communication. (iPhone/iPad app by NumberBarn, LLC.) - Source: https://appshunter.io/ios/app/string-modern-phone-inbox/id1445655431 (this page in markdown: same URL + `.md`) - Developer: [NumberBarn, LLC](https://appshunter.io/developer/1031383867) - Category: Business, Productivity - Price: Free - Rating: 3.50/5 from 62 App Store ratings · 35 written reviews indexed - Age rating: 4+ - Requires: iOS 15.0 · 68 MB - Languages: American English - Released: 2019-04-12 - Data updated: 2026-07-25 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/string-modern-phone-inbox/id1445655431/reviews.md ## What is String? Boost your brand engagement with String’s intuitive business SMS marketing, text and voice. ANY PHONE NUMBER, EVEN LANDLINES Use your existing mobile or landline number with String. Select a new local number or upgrade to a vanity or toll free number of your choice. ORGANIZE YOUR INBOX Transform your inbox into a sales funnel or kanban board with various viewing, filtering and tagging options — Stay on top of your conversations and never miss a message again. POWERFUL MESSAGE MANAGEMENT Mark Unread and Archive — You love it for your emails, you’ll love it for your texts. STAY RESPONSIVE, 24/7 Amplify your interaction with automations and Auto-Replies — Respond to texts and missed calls on time, every time. TAP INTO ENDLESS POSSIBILITIES Contact Management & Integrations — Save important contact notes directly from the message thread. Capture contacts, import from your phone or computer,, automate workflows, integrate with tools you love (like your CRM, etc). REACH THE MASSES, OR JUST ONE Conversational, Groups or Mass Messaging — Respond directly with 1-1 messaging, message with a group,r or send personalized Mass Messages to multiple people at once, individually. BUILD A LOYAL CUSTOMER BASE Send promos, reminders and confirmations and never miss a lead, client or customer with Elite features like triggered Keyword Responses, and Auto-Replies. SAVE TIME Templates — No more copy-pasting the same message over and over. No time to listen to voicemail? View voicemail transcriptions in your inbox with visual voicemail. USE IT ANYWHERE Browser & Mobile Apps — Increase your workflow efficiency with access to String from your computer and mobile device. CALL FORWARDING & VOICE Separate your personal and professional calls with call forwarding and flexible voice settings. GOT QUESTIONS? Email our stellar support at support@joinstring.com. Find helpful articles, join our customer community and create tickets in our Help Center: https://help.joinstring.com/hc/en-us Terms of Service: https://www.joinstring.com/terms Privacy Policy: https://www.joinstring.com/privacy ## Key features - Use existing or new phone numbers - Organize inbox with sales funnel view - Automated responses and auto-replies - Contact management and CRM integrations - 1-1, group, and mass messaging - Templates and voicemail transcription - Browser and mobile app access ## Recent user reviews (10 of 35) All indexed reviews: https://appshunter.io/ios/app/string-modern-phone-inbox/id1445655431/reviews.md ### 1/5 — Do not even try it *2025-04-08, version 3.1.21* I wish I did my research before switching my business line to string. The calls would drop within 3-10seconds and then I would not be able to call back. Then my line cut out completely and sent people straight to voicemail. I lost so much business. Their customer support is non-existent. You cannot get anyone on the phone and have to wait days for email replies that are generic. I finally got my line changed to Ring Central and they are amazing! Highly recommend. ### 1/5 — Don’t waste your time or money *2024-10-02, version 3.1.19* I’ve used String now for 4 years, Nov 2020 to be exact, and when I tell you this app does not get better - even that’s a case understatement. I was worried, but later had high hopes when they were bought out by Number Barn, yet they seem to have forgotten about the app too. I’ve also been in contact with their support team to try and resolve issues. They’re fixed for a few weeks, but then the issues come right back. • Most times the website loads to a white screen, I’m lucky to even get in • App loads message threads out or order • tapping into a thread does not load any part of the conversation • sending a message in the thread works, but you wouldn’t know because, well, the thread doesn’t load • Tapping a thread with a contact you thought you were going to loads an entirely different number/contact at the top, still with no content At this point, I’m only using it for notifications that messages came in so I can then go spam reload / clear cache on my computer until the page loads so I can respond to clients. ### 3/5 — Service works, mobile app is incredibly buggy and bad. *2023-01-31, version 3.1.6* Started off promising, then they got bought by Number Barn and seem to be the forgotten service. App has been incredibly buggy with every update, often push notification badges don’t clear, text threads are slow to update and sometimes show off screen, and a number of other weird usability flaws requiring you to end the app and reopen to hope it fixes. Use the website primarily and this app as a backup and you’ll be okay. It could be MUCH better if it was just stable. iPhones used on: X, 12 Pro Max, 14 Pro Max ### 1/5 — New user experience *2022-08-03, version 3.0.7* It’s doesn’t have where to sign up on the app ### 1/5 — Lost my number, no one to talk to *2021-12-01, version 3.0.7* Had to uninstall and reinstall the app, now I can’t access my account, and there is no one to message or call. Worst idea ever. ### 1/5 — It a Lie *2021-07-15, version 2.1.28* I don’t think this real, my iTunes account got debited and didn’t even load me to a page to sign in or ask me to chose a number, It keeps return to the start and asking me to select important reasons on using which I did multiple time… To me it not real ### 5/5 — Exit unpaid account *2021-05-08, version 2.1.28* Please how do i exit unpaid account on my iphone, its stuck, i need to logout and login back. I paid with apple credit and my money is deducted still not working ### 5/5 — N mob *2021-03-13, version 2.1.28* Yrn ### 1/5 — Want a refund *2021-03-01, version 2.1.28* I literally just downloaded and paid for the subscription and realized this is totally not what I thought I was buying. I immediately cancelled, but doesn’t look like they are giving me a refund. No support and no one to contact. ### 4/5 — Calling Is A Bit Buggy *2021-02-03, version 2.1.28* I loved string and use it daily for real estate prospecting. The texting is flawless on both mobile and desktop. The one issue I’m having is with the phone portion of the app. Sometimes I miss calls because there are no badge notifications or Lock Screen, and it leads to missed calls. Also, sometimes missed calls do not show up on the main log panel. This would be great to fix. ## Frequently asked questions about String ### What does this app do? This app is a business SMS and voice platform designed to enhance customer engagement. It allows you to use your existing phone number or get a new one for business communications, organize your inbox, and automate responses to messages and missed calls. ### What are the key features of this app? Key features include the ability to use any phone number, an organized inbox with sales funnel views, powerful message management, automated responses, contact management with CRM integrations, and options for 1-1, group, or mass messaging. It also offers templates and voicemail transcription. ### How is this app monetized? The app is free to download and use, with in-app purchases available for additional features and services. Specific pricing details for upgrades and premium features can be found within the app or on their website. ### What devices is this app compatible with? This app is accessible from both your computer via a browser and on your mobile device through dedicated mobile apps. This allows for increased workflow efficiency and the ability to manage communications from anywhere. ### What are common use cases for this app? Common use cases include sending promotional messages, appointment reminders, and order confirmations to customers. It's also useful for lead generation, managing customer inquiries, and providing customer support through text and voice channels. ## Version history (last 5 releases) ### 3.1.28 — 2026-07-22 Improved message history loading Added emoji response handling Added offline mode support Introduced number blocking Smoother in-call experience and handling Enhanced audio routing and Android channel management General bug fixes and performance improvements ### 3.1.27 — 2026-07-16 Added offline mode support Introduced number blocking Smoother in-call experience and handling Enhanced audio routing and Android channel management General bug fixes and performance improvements ### 3.1.26 — 2026-06-09 Improve internal data handling ### 3.1.25 — 2026-02-04 Improvement to long inbox names Fixed MMS media rendering Upgrades and Security improvements ### 3.1.24 — 2025-05-07 Performance improvements ## Apps similar to String | App | Rating | Price | Category | | --- | --- | --- | --- | | [iPlum: Количество США Телефон](https://appshunter.io/ios/app/iplum/id989447181) | 4.3 (1,662) | Free | Business | | [OnPhone: Second Number & eSIM](https://appshunter.io/ios/app/onphone-second-number-and-esim/id1564051387) | 4.6 (50,880) | Free | Business | | [2nd Phone Number: BusinessLine](https://appshunter.io/ios/app/2nd-phone-number-businessline/id1584777868) | 4.6 (3,757) | Free | Business | | [SmartLine Second Phone Number](https://appshunter.io/ios/app/smartline-second-phone-number/id1161533637) | 4.7 (44,037) | Free | Business | | [SwitchUp - Second Phone Number](https://appshunter.io/ios/app/switchup-second-phone-number/id1527598796) | 4.5 (4,929) | Free | Business | | [2nd Phone Number, Second Line](https://appshunter.io/ios/app/2nd-phone-number-second-line/id6737282216) | 4.4 (205) | Free | Business | ## More apps by NumberBarn, LLC - [NumberBarn Classic](https://appshunter.io/ios/app/numberbarn-classic/id1020844441) - [NumberGarage](https://appshunter.io/ios/app/numbergarage/id1474882302) - [NumberBarn](https://appshunter.io/ios/app/numberbarn/id1623855033) All apps by NumberBarn, LLC: https://appshunter.io/developer/1031383867 ## Related topics [numberbarn](https://appshunter.io/ios/topics/numberbarn) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-25.*