Index: Business Phone Number

• Index - Monthly Plan — $24.99/month
• Index - Monthly Plan — $199.99/year ($16.66/mo)
• Port Out — $49.99

Last verified 5 Aug 2026

3.9 376 ratings · App Store

1. 4/5Great app, just missing one easy thing to be perfect

   As a business owner who frequently utilizes the Index app for managing various templates, I can confidently say that it's a fantastic tool for its price point. The simplicity of use is unparalleled, and it has greatly streamlined our workflow. However, there's one feature that could take it from good to exceptional: a search option for templates. With the sheer volume of templates we manage and the diverse range of questions we receive, having the ability to quickly search for specific templates by keyword would be a game-changer. It would significantly expedite our process and make the app even more indispensable to our operations. Overall, I highly recommend the Index app for its simplicity and effectiveness. I eagerly await future updates and hope to see the addition of a search feature soon. So it can be the 5 star app it should be.

   Davisaza · 5 Aug 2026

2. 1/5NoGo

   I never leave reviews so this comes with passion I was with sideline for many years and recently they were having all kinds of texting issues sending and receiving messages so they moved me to index. The issues would last nearly a week which is un acceptable for businesses. Once I moved to Index the problem still occurred for a while. They registered me with the registry which is now a requirement for businesses. The service started working again. But now we are completely getting no messages and we are unable to send no messages. It is now day 13 and still nothing this has been detrimental to our company as our whole company runs off of text messaging. We have made plans to switch services because we see no end insight. I do not know who’s fault it is but we have been given a Port out date 10 days from the date we initiated it that is way too far out and way too long to have the wait without text messaging Services. And all of my life of running businesses I have never seen a company with an outage that lasted this long. One note I must make is that they have a customer service chat and email and they are very responsive on that with quick turnaround however, that’s pretty much all it is is chitchatting back-and-forth with no outcome and still lack of texting service abilities. While I am waiting until my port out date I am hoping they can either move my port out date sooner and or fix my text message abilities come and give me one or the other. It has been a half of a month with no texting service: index and sideline have a wonderful concept and great system when it is working but when they have issues it is a very long time to fix. If they can fix the down times and create more reliable service i would come back

   Nottoday needsfix · 5 Aug 2026

3. 1/5Disappointed

   Initially, I had been using Sideline for the second phone number, but then was told that Index had superior options and recommended to switch over as it was a sister app. However, just in the last six weeks to two months, I have had the worst experience with this app/company. Reading the reviews further confirms, and at least provides me with some relief, knowing that I wasn’t the only one who has had poor communication with representatives through their support chats or emails. I even wonder if the apps response to the negative reviews on here will do anything at this point. I know for a fact that I have lost business and job opportunities because my phone number was not receiving calls or text messages and the deadlines had passed. It upsets me to know that I have thrown away money at this app and am being taken advantage of and given the run around. They “fix” my issue and then within one day or two it’s on the fritz again. They tried to blame my cell phone service provider with filtering these calls/text, but I contacted my cell phone provider and they informed me that they have no filtering on these texts as it is all routed through Index’s own servers/number. It is embarrassing that I have had to give my personal number to clients to avoid telling them that my number isn’t working. It makes me look like I couldn’t afford to pay my phone bill and overall it just seems so unprofessional. Unfortunately, I have to keep this phone number because all my advertisements and merchandise contain it and would cost me thousands to replace it. Hopefully I’ll be able to find a way to keep my phone number and transfer it for use on another app/service that can actually help prevent this issue… not just temporarily. At this point, I am at their mercy and it is a horrible feeling.

   Jdt07 · 5 Aug 2026

4. 2/5Reminders broken

   I’ve been a Sideline customer for 3+ years and I have to tell you that the update to Index is less than ideal. What was once an easy to use and relatively fluid user experience, the new system for booking appointments is cumbersome and inefficient, specifically in regards to the reminder system. The ability for Sideline to communicate with my iCloud calendar and propagate customer appointments and phone numbers from the calendar and into Sideline made reminders straightforward and easy. Furthermore, the control and customization of the reminders made this feature vital for customer communication. The new system which forces you to book appointments *only* through Index makes scheduling frustrating and laborious. There is no indication through Index’s calendar which times/slots are available until you attempt to book and then it only tells you if a spot is unavailable after attempting to confirm a booking. To solidify the frustration there is no indication within Index, unlike in Sideline, whether or not a text reminder has been sent to clients. Please improve upon or reinstate the previous reminder functionality.

   Bryan! · 5 Aug 2026

5. 2/5Will the REAL PHONE APP.. PLEASE STAND UP?!

   I am so confused. When I first bought this app, it was transferred over from Sideline. Another words I was told that it was a merger between Sideline and your app ““ index. However, upon having it for at least two to actually four years now you guys have circumvent changed the apparatus in there in which I am being charged way more than previously entertained or contracted. you guys up the pay on the contract or up the payment requirement on the contract without any notice on your behalf, or towards mine. Subsequently I had to let the app go which I’ve had for four years the same phone number because you guys decided to raise the price $10 from 1499 to 2499. Now, the fact remains that I did not sign up for 2499. In fact, I originally signed up for 999. I want to know why it is you guys want to charge 2499 and I have no access to my old line anymore will I get access to my old phone number if I continue my subscription I do not want to pay 2499 because that’s not what the agreement was. I will contact my lawyer if this issue is not Resolved within 24 hours and 99 seconds.

   AllStarHoodPlayaHata · 5 Aug 2026

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