First he lied about his age now I see on the app his height changed! Red flag?

It may feel like you are being duped but think of it from a guy’s perspective. Some women won’t consider a guy over say, 40 or under 6’ so they are out of the running immediately. They may fib just to turn up in search results and hope they can connect with someone and make the age height issue seem irrelevant if there is a real connection.
If age and height are dealbreakers for you then move on but if not, I would give him a chance If you like the conversations you are having by text. Be very much aware of any further signs of fibbing.. but he may just be trying to gain access to the pool of consideration.
I have three sons who are all under 6 feet and think of them when I read this!

Have you met in person?

The only time a guy ever lied to me about his age, it was only by a year so I let it slide… big mistake, huge red flag and sign of things to come.

I personally wouldn’t get involved with someone doing this, and I’d let this one fade without meeting because I don’t even know what you’d get out of bringing it up with him. Listen to and trust your gut when you feel something is off before you even meet. He’s most likely insecure (or, less likely but still possible, pathological!). There’s other ways to widen your pool besides lying about your stats. If you want a good guy, you need to start with trust. Him trying to tell you what he thinks you want to hear and not telling you who he really is isn’t the way to find a trustworthy and respectful partner.

Plus, he is lying to make himself 5 years younger and matched with you because he thought you look younger than you are. Just doesn’t sound like someone looking for an equal partner of his own age… 38 and 39 year old women aren’t typically going to exclude a guy because he’s 40 or 41. But women 10 years younger probably will :p

I’ve always had the best luck with men who present themselves as they are, because how else can you honestly mutually gauge compatibility? Since you’re worried based on your own past experiences, I’ve found that the important and most reliable early red flags you need to look out for is when they’re not presenting themselves honestly, when their words / actions are not aligned, and when there’s a chaotic dating history and they don’t see their own part in it maturely.

Well, personally I experience the same thing!(More than once)
First of all, dating apps are ruthless. So there’s some reasonable excuses for them to lie a bit about their age or height, just like girls put prettier pics. Guys do this more often than you think.
However, it depends on how he handled the situation. Before I met my bf, there were 2 guys lied about their age. Both of them didn’t tell me before I found out.
My bf lied at first too. He put 35 and he was actually 40. Because he looks younger so I never found out. 9 months after our first date he told me. And I could see him feeling genuinely embarrassed and fearful. He said we were getting serious and he tried to tell me so many times but didn’t have the balls. Then finally he didn’t want me to find out by myself and feel betrayed. Surprisingly I was touched and I forgave him. That even brought us closer to each other.

On the other hand @Maddie makes a good point:
“38 and 39 year old women aren’t typically going to exclude a guy because he’s 40 or 41. But women 10 years younger probably will :p”

In my case I was 26, so a lot younger than my bf. If I knew he was 40, I probably wouldn’t consider a serious relationship with him.

When my boyfriend and I met the first time, he lied to me about going to university and studied a history degree. I was still in university at that point and was doing a vocational degree. After a few dates, he told me that he never actually went to uni, only lied to get a first date with me as he wasn’t ‘smart’ enough.

I agree that guys sometimes lie to get a first date and that’s that, nothing else. Just be careful and enjoy getting to know him. And yes, most guys think they need to be above 6ft to get girls attention so probs why he lied.

Don’t over think it, just meet and see how things go. if he’s initiating most of the time in a consistent level, then I’d say start considering if you want to pursue anything further with him.