What are the mobile phone softwares that send short messages for free?

1, "Courier", this is a very practical SMS software, which is more suitable for couriers and takeaways to improve their work efficiency. You can send short messages with one key recognition, and you can input voice. Please download the experience if necessary.

2, "Ali trumpet", Ali trumpet is a relatively comprehensive short message software, you can send short messages without SIM card. If you don't want to expose personal information when encountering various advertisements, you can also use Ali trumpet to communicate, which can protect the privacy of users.