Comparison

Building Stack vs Ava Client

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

Head to head
About

Building Stack

This app provides a mobile platform for property managers and tenants to access and manage rental property information. Tenants can submit maintenance requests, view building documents, and pay rent, while managers can handle rent payments, find new tenants, and communicate with residents.

Highlights
  • Submit maintenance requests
  • View building information and documents
  • Pay rent online
  • Receive real-time notifications
  • Manage tenant contact information
  • Automated listing process for new tenants
  • Track and manage maintenance issues
Features
Read full description

With the Building Stack app, property managers and tenants get a mobile access to all the convenient features of their Building Stack account. Tenants can quickly submit issues directly to management, as well as view important building information on their portal. Staying up to date with the current status of your rental unit has never been simpler. - Access your building’s rules, schedules and other important documents - Create maintenance requests and receive update notifications in real time - Pay your rent online by credit card, debit card or bank account - Receive important notices from the management team, rent payment reminders and more Property managers can access all their data, including building and unit amenities, tenant contact information, lease details and more, right at their fingertips. They can communicate with tenants and send real-time e-mail, SMS, phone call or push notifications. Portfolio vacancy rates and listing performance reports are only a few taps away. - Accept online rent payments - Find new tenants easily thanks to our automated listing process - Manage your employees’ access to information and features of the platform - Track and manage issues easily with real-time notifications and auto-assign features - Exchange messages with your tenants and employees - Share important documents and information with your tenants - View the location of your team members on a map App support: If you experience any problems with the Building Stack app, please e-mail us at info@buildingstack.com.

About

Ava Client

Automate client interactions and follow-ups to save time and manage more clients daily. Easily acquire new clients with customizable document templates and automated workflows. Streamline communication with automated emails, texts, and task management.

Highlights
  • Automated client acquisition tools
  • Customizable document and form creation
  • Drag-and-drop pipeline management
  • Automated email and SMS sending
  • Automated task and calendar management
  • Social media and Google account integration
Features
Read full description

AVA Client is an easy-to-use application to automate your interactions and customer follow-ups. Start saving time every day now and increasing the number of clients you can handle on a daily basis. With our application, you can easily automate customer acquisition with several tools that allow you to build document format and type that can retrieve information to then be used in your own automation pipeline. AVA's interface is extremely easy to use, once the customer has been created in your pipeline, you can simply move the customer file from step to step and the automations then start automatically. You can also automate the customer's movement through your pipeline in response to different criteria, if they are met then the customer will move through your pipeline and the automations will kick in on their own. AVA client offers several types of automation that you can add to customize. A complete system for sending email and automatic text message. A task system that can be updated automatically to ensure rigorous monitoring. A calendar system to manage your appointments with your customers also automated. You can create different forms and documents that you can send to your customers and "grab" the information to use it and make your job easier. You can automate the sending of voice messages and record your own reception messages. Your company profile will be able to record the different social network and google accounts you use, so they can be used in different contexts, for example to send your customers a google review request after serving them. Another example, using the Facebook messenger application to communicate in a more personal way. The power behind every automated action is that it is created in a pervasive way to suit each customer. For example; first and last name, address, telephone, etc. of each customer is automatically listed in the desired location in each email, text message and other sending format so that each message is specifically addressed to each person with personal wording for a unique service. You can then use our templates or create your own to meet your specific needs. For more information on the application, you can contact us: support@avaclient.com or go to the website www.avaclient.com

Screenshots

Building Stack4 screens
Ava Client4 screens

Verdict

The call

The clearest difference is review sentiment: Ava Client at 100% against Building Stack's 20%. Ava Client also leads on monetization model (free vs freemium). Building Stack's advantage is update cadence (weekly vs every 5 weeks). On price, ads, 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

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

Building Stack ships an update weekly, Ava Client every 5 weeks. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.

Scorecard3 real differences · 7 level
Building Stack versus Ava Client: the parameters behind the verdict, then further details
ParameterBuilding StackAva Client
PriceFreeFree
Rating4.8 (29 ratings) — better—
Positive reviews20.3% of reviews100.0% of reviews — better
Number of ratings29 — better—
Update frequencyWeekly — betterEvery 5 weeks
AdsNoNo
In-app purchasesNoNo
MonetizationFreemiumFree — better
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.4 — better16.6
Further details — not scored
Size82 MB344 MB
Age rating4+4+
DeveloperGotham Management IncAVA CLIENT INC.

Customer experience

Building Stack

All ratings29 ratings
Positive93.1%
Neutral3.4%
Negative3.4%
Written reviews59 reviews
Positive20.3%
Neutral1.7%
Negative78.0%

Ava Client

Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Building Stack

No in-app purchases

None

Ava Client

No in-app purchases

Questions

Is Building Stack free?
Building Stack is free to download, with no in-app purchases.
Is Ava Client free?
Ava Client is free to download, with no in-app purchases.
Do Building Stack or Ava Client have ads?
Neither Building Stack nor Ava Client shows ads.
Which is updated more often, Building Stack or Ava Client?
Building Stack ships an update weekly, and Ava Client every 5 weeks. Most recently, Building Stack was updated on October 26, 2026 and Ava Client on October 24, 2026.

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